QST 1926-10: Vol 10 Iss 10

Page 1

ae Zz SS A , ™» DEVOTED ENTIRELY TO AMATEUR RADIO PUBLISHED BY THE AMERICAN RADIO RELAY LEAGUE An All-Wave Receiver/ COMPLETE IN THIS DESCRIPTION Constructional detaus for building a plugim-coil tuner efficiently covering all the useful wave-bands fromm 12 Lo 20,000 meters. OCTOBE c / 1926 _ l5¢

Page 2

SINCE-1915 STANDARD FOR-ALL- SETS ig ALL-TYPES:-C-AND- CX IN-THE-ORANGE AND: BLUE-CARTON SOLID, SUBSTANTIAL as to value— DELICATE, PRECISE as to performance— T nut-shell, is the reason why Cunningham Radio Tubes won the com- ce of radio owners away back in 1915 and why they hold this confidence I face a most extraordinary task. They must have rugged strength—a t will endure through hour after hour of gruelling service. Yet they n have accuracy that transcends all normal scientific standards. Cunning- h Tubes meet these exacting requirements year after year. By sheer 1ve won their way into the sockets of America’s finest radio receivers. LE aap Go New York Chicago San Francisco M ired and sold under rights, patents and inventions owned and or controlled by Radio Corporation of America.

Page 3

RA -power Radiotrons | VOIU TLE -without forcing Te man who likes plenty of volume for easy listening usually has to drive ¢. the last tube of his set beyond its limit to 7 . . oe ot get the music loud enough. And then it 9° ea is no longer music. The RCA power Ra- S | diotrons are specially made to stand the - 2 | strain in the last audio stage. They can o> | ° “es handle plenty of volume without blasts or &> wtne rattles, and therefore mean finer, clearer Sn tone! mid Sauery power nuns pastes UX-120 $2.50 Storage ety or ane Cc. poo Radio- tron UX-17 $6 ,00 Supcige eaney boweet Radiotron ees 12 $6.50 Storage battery or A. C. super-power Radiotron UX-210 ’ $9.00 iTV’ | Ouality : Ops is-a-research-story _ co) te ' > . ‘ C > C) e The high quality of performance you get with a genuine ’ RCA Radiotron is due to incessant research. The Radio- tron laboratories find ways to make better tubes—they find ways to improve manufacturing processes—and they keep a constant check on the uniformity of the manufac- tured Radiotron. It pays to look for the RCA mark. ( RADIO CORPORATION OF AMERICA fe a New York Chicago San Francisco 3 O> RCA- Radiotron [MADE "BY THE MAKERS OF THE RADIOUA | Ee SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST 1

Page 4

ERS coil_ SUPER~SENSITIVE INDUCTANCE UNITS The most important factors in perfect set performance: A are the perfect supersensitive inductance units! Due to their sp tented construction, high frequency resistance is reduced to a n Hence Aero Coils are capable of greater volume, and are sensi- ti the radio frequencies, thereby correcting the real cause of distor- sible to correct with other types of coils. But more! No dope So if you are interested in better performance from any set, be d with Aero Coils. Tuned Radio Frequency Kit The Aero Coil Tuned Radio Frequency Kit illustrated above will positively improve the performance of any receiver. Patented Aero Coil Construction eliminates radio frequency losses and brings tre- mendous improvement to volume, tone and selectiv- ity. Kit consists of three matched units. The antenna coupler has variable primary. Uses .00035 con- denser. 8 page color circuit layout and instruction sheet for building the supersensitive 5 tube Aero- Dyne receiver packed with each kit. Extra copies, 75¢ each. Low Wave Tuner Kit nterchangeable. Adapted by experts Range 15 to 130 meters. Includes | base mounting, covering U. S. bands ) meters. You can increase the range t wave tuner by securing coils No. 4 and ed range of 25 to 150 meters. Both inter- ls fit same base supplied with short nd use the same condensers. Coil No. 4 ; Coil No. 5 price $4.00. PRICE $12.50 Aero Interchangeable Coils No. 4 and 5 Increase range of your short wave tuner by secur- ing coil No. 4 and coil No. 5, combined range 125 to 550 meters. Both interchangeable coils fit the same Aero base supplied with the short wave kit, and use the same condensers. . Coil No. 4 — Range 125 to 250 meters — $4.00 WSS 'S Coil No. 5 — Range 235 to 550 meters — $4.00 Other Supersensitive AERO Inductance Coils \ero Coil for every inductance requirement. In addition to these described ke the following coils: Aero 3 Circuit Tuner, $6.50. Aero Radio Frequency e kit, $10.00. Aero Low-Loss Antenna Coupler, $4.50. Aero Oscillator (for lynes), $5.50. Aero Wave Trap Unit, $4.00. PRICE $12.00 You can get any or all of these coils from your nearest dealer. See him TODAY. tO PRODUCTS, INC., Dept. 16, 1772 Wilson Ave., Chicago, III. HENGER-SELTZER (Pacific Coast Representatives) 1111 Wall St., Los Angeles, Calif. 337 Brannan St., San Francisco Calif. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 5

Section Communications Managers of THE COMMUNICATIONS DEPARTMENT, A.R.R. L. Eastern Pennsylvania BQ Maryland-Delaware “District OH Columbia SAIS “3B Sovthern New Jersey 3EH Western New York 8PJ Western Pennsylvania 8X8 Illinois SAAW Indiana scYQ Kentucky S9ARU Michigan 8ZZ Ohio sRYN Wisconsin svVD North Dakota* 9EFN South Dakota sBDW North Minnesota SEGU South Minnesota 9ZT? Arkansas® 5XAB Louisiana 5UK Mississippi 5AKP Tennessee* 4DN Eastern New York 2aAD N. ¥. C. & Long Island 2C WR North New Jersey 2wWR Towa SDOA Kansas SDNOG Missouri 9RR Nebraska SBYG Connecticut 1BM Maine 1BIG Eastern Massachusetts IBVL Western Massachusetts IDB New Hamphire 1ATJ Rhode Island 1IBVB Vermont 1AJG Alaska® TDs Idaho* 7ST Montana® ™NT Oregon* TIT Washington® TDD Hawail 6T Nevada pe South Section 6BUR Sect. 4 (No. Calif.) @NX Sect. 5° °° - 6AHG Set. ¢° © ” 6BAP North Carolina* 47 Virginia® CA West Virginia sBSU lorack SC AA Ut Wroming*® 6ZT 7ZO Alahama 5AIP Florida 4GY Georgia-South Carolina-Cuba-Porto Rico-Isle 4KU Northern Texas 5AJT New Merzico Oklahoma 5SAPG Southern Texas 5YK Newfoundland SAR New Brunswick 1EI Nova Scotia IBD Prince Edward Island 1BZ Ontario® 9BJ ‘ Quebec 3BH Alberta® ~ 4GT British Columbia 5GR Manitoba ‘DB Saskatchewan 4CB ATLANTIC DIVISION H. M. Walleze 597 No. James St. H. #L. Layton 805 Washington St. A. B. Geodall 1824 Ingleside Terrace H. W. Densham 140 Washington St Cc S& Taylor 598 Masten St G. L. Grossley CENTRAL DIVISION W. E. Schweitzer 1264 Hazel Ave D. J. Angus 10 N. Illinois St D. A. Downard 116 No. Longworth Ave. Cc. E. Darr 137 Hill Ave H. C. Storck 694 Carpenter St Cc. N. Crapo 143 Newton Ave DAKOTA DIVISION . R. Moir 618 llth Street, South J. Beet Cc. L. Barker 10 DELTA DIVISION Dr. L. M Hunter 207% Main St. C. A. Freitag 129 Camp st Hazleton Wilmington, Del. Washington, D.C. Collingswood Buffalo State College Chicago Indianapolis Louisville Highland Park, Detroit Columbus Milwaukee Fargo Milbank Henning Little Rock New Orleans W. Gullett 1708 23rd Ave. Meridian L. EK. Rus 4 Second St. Bemis HUDSON DIVISION Earle Péacox Box 113 Yonkers F. H. Mardon 117-11 140th St.. So. Ozone Park, Jamaica, L. I A. J. Wester, Ir 1075 Chancellor Ave. Hilton MIDWEST DIVISION L. R. Huber Room 19-C Quadrangle Towa City F. S. McKeever University Heights Lawrence L. B. Laizure 8010 Mercier St Kansas City Cc. B. Dethi 3006 S. 32nd Ave. Omaha NEW ENGLAND DIVISION H. E. Nichols 82 Elmwood Ave Bridgeport Frederick Best 13 B Crescent St Augusta S. Briggs 393 Ashmont St. Dorchester A. HL Carr 50 Vassar St. Worcester Vv. W. Hodge D. B. Fancher Kerr 227 Main St 86 Franklin St Cc T NORTHWESTERN DIVISION L. H. Maghin Bor 452 Henry Fletcher 1107 State St A. R. Willson A. C. Dixon, Jr 1350 Bast 36th St. Otte Johnson 4340 30th St. W. PACIFIC DIVISION A. Cantin 1593 Piikoi St. o B. Newcombe L E Smith F. J. Quement P. J. Lorsheter St. Clair Adams ROANOKE DIVISION R. S. Morris 413 Broad St J. FP. Wohlford 118 Cambridge Ave ( S. Hoffman 126 Chantal Court ROCKY MOUNTAIN DIVISION C. R. Stedman 1641 Albion St Art Johnson 247 EB. 7th So. St N. R. Hood 1022 S. Ash St SOUTHEASTERN DIVISION 4. D. Trum 217 Catoma St W. F. Grogan Box 816 of Pine i. lh Reid 11 Shadowlawn Ave. WEST GULF DIVISION W. B. Forrest, Jr 502 Royal St 340 No. Painter Ave. 51 Pleasant St 635 52nd St K. M. Ehret 2904 N. Robinson St EK. A. Sahm Box 569 MARITIME DIVISION Loyal Reid Avalon House T. B. Lacey % N. B. Power Co W. C. Borrett 14 Sinclair St Ww. A Hyndmar 25 Fitzroy St ONTARIO DIVISION W. Y. Sloan 167 Close Ave. QUEBEC DIVISION Alex Reid 202 Birch Ave. VANALTA DIVISION A. HL Asmussen 223 2nd Ave. N. E. Felix B. Batt 211 8th Ave. E PRAIRIE DIVISION F. EB Rutland, Jr. BL. Maynard 152 St. John Ave Clarémont Westerly Poultney Cordova Boise Ramsey Portland Seattle Honolulu Yerington Whittier San Jose Oakland Eureka Gastonia Roanoke Wheeling Denver Salt Lake City, Utah Casper, Wyo. Montgomery Ft. Myers tlanta Waxahachie Oklahoma City New Braunfels St. Johns St. John Dartmouth Charlottetown, P. E. { Toronto St. Lambert Calgary Prince Rupert Winnipeg Morse "Temporary officials appointed to act until the membership of the Section concerned choose permanent SCMs by nomination and election on. ** Active stations in Maryland are requested to report to SCM Layton of Wilmington, Del until an SCM is elected for the Sect

Page 6

Front view of CR-18 with 200 meter coil intake and additional coils for 10, 20, 40 and 80 meter bands. Showing coil mounting and Beat Frequency Con- Q Meets All Amateur Requirements T f= CR-18 was designed especially for the amateur. The rap- growing demand for this low-wave receiver is proof posit that it is fully satisfying his needs. The ency of the CR-18 is the result of eight Grebe features plus be construction. . AnA Coupling Coil provides va- Beat Frequency Control permits tuning riab agnetic coupling between an- _to’a fraction of a kilocycle. tenna circuit. Permits of harmonic . , : : enn rease signal strength, gives Plate Circuit design gives smooth control great ty and reduces interference Of regeneration without affecting wave- and noises. length calibration and tuning. Loss« juced to a minimum. Cushion Sockets eliminate microphonic Plug allow rapid change from one 9 ®0'S*S- freq 1 to another. The six Self Supporting Air Dielectric Greil Condensers insure ease of Coils are very rugged, which insures long tunir ximum signal strength. life. Write for Booklet Q and charts. H. Grebe & Co., Inc., 109 West 57th Street, New York Factory: Richmond Hill, N. Y. Western Branch: 443 So. San Pedro St., Los Angeles, Cal. he CREB N my sil C Duor Hig i) A) Reis This Company owns and operates stations wren WAHG and WBOQ; ‘a also broadcasting sta- A modern coupled regenerative circuit tions, Mobile WGMU as : 4 ee receiving between 10 and 200 meters — — a0 ond grants pending. (1500 to 30,000 kilocycles) 2XE. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 7

OCT =4 926 SP US71083 © 4 _|| dhe Official Organ of the AR-RL | / ) | VOLUME xX OCTOBER 1926 NUMBER 10 Editorials 7 Covering All Wavelengths John M. Clayton 9 Central Division Convention 15 } The Length of the Hertz Antenna G. Wm. Lang 16 Cheap Measuring Instruments Walter T. Lang 17 Grid Condenser and Leak Mounting 19 | Constructing and Erecting a Steel Mast Perry O. Brigga 21 Election Notice 22 Aurora and Its Effect upon Radio Signals Ww. M. Sutton 23 A Straight Frequency Line Condenser 24 Wavelength-Frequency Conversion Chart 25 ‘Ham” Cc. E. Tamm 26 Experimenters’ Section Report 27 A New Illuminated Dial 28 Hints on the Design of Small Pewer Transformers Allen H. Babcock 29 Neon Tubes and the Radio Transmitter C. A. Briggs 30 A. R. R. L. Information Service 30 A Radio Picture Demonstration 31 Reducing Power for Local Work Rufus P. Turner 33 Standard Frequency Schedules 33 Short-Wave Tuner Kits 34 Plug-In R. F. Chokes 35 A Portable Transceiver Frank A, Gunther 36 Amateur Radio Stations, 3AAl, 5AKM, 1AAE 38 Calls Heard 44 Correspondence is Central New York Convention 19 Ham Ads 91 QST’s Index of Advertisers 94 EE QST is published monthly by The American Radio Relay League, Inc., at Hartford, Conn., U. S. A. Official organ of the A.R.R.L. and the International Amateur Radio Union Kenneth B. Warner (Secretary, A.R.R.L.), F. Cheyney Beekley Editor-in-Chief and Business Manager Managing Editor and Advertising Manager Robert S. Kruse, John M. Clayton, David H. Houghton, Technical Editor Assistant Technical Editor Circulation Manager Subscription rate in United States and Possessions, Canada, and ali countries in the American Postal Union, $2.50 per year, postpaid. Single copies, 25 cents. Foreign countries not in American Postal Union, $3.00 per year, postpaid. Remit- tances should be by international postal or express money order or bank draft negotiable in the o S. and for an equivalent amount in U. S. funds. Entered as second-class matter May 29, 1919, at the post office at Hartford, Connecticut, under the act of March 3, 1879. Acceptance for mailing at special rate of postage provided for in section (103, Act of October 3, 1917, authorized mber & 1922. Additional entry as second-class matter, acceptable at spgtial rate of postage provided for above, at Springfield, Mass., authorized Septe er 17, 1924, Copyright 1926 by the American Radio Relay League, ino’ Title registered at United States Patent Office, Member of the Radlte Magazine Publishers’ Association.

Page 8

_ -- THE AMERICAN RADIO RELAY LEAGUE American Radio Relay League, Inc., is a non-commercial as ition of radio amateurs, bonded for the promotion of interest in amateur radio communication and experimentation, for the relay- ing of messages by radio, for the advancement of the radio art and of t public welfare, for the representation of the radio amateur in lewislative matters, and for the maintenance of fraternalism and a standard of conduct. ia an incorporated association without capital stock, char- te ler the laws of Connecticut. Its affairs are governed by a B f Directors, elected every two years by the general member- 4 s} [he officers are elected or appointed by the Directors. The A is non-commercial and no one commercially engaged in the m .cture, sale or rental of radio apparatus is eligible to mem- ber p on its Board. ‘f, by and for the amateur”, it numbers within its ranks prac- t every worth-while amateur in the world and has a his- ton f glorious achievement as the standard-bearer in amateur juiries regarding membership are solicited. A bona fide in- ter n amateur radio is the only essential qualification; ownership of nsmitting station and knowledge of the code are not prereq- ui Correspondence should be addressed to the Secretary. President Treasurer HI M PERCY MAXIM ae A. A. HEBERT tford. Conn Communications Manager Hartford. Coun tl » \ ° ’ . : F. E. HANDY e-President Hartford, Conn. ; Secretary ( H. STEWART K. B. WARNER is, Pa. Hartford, Conn. Dakota Division P Cc. M. JANSKY, = - Pacific Division ident : Dept. of Elec. Eng., U. o ALLEN H. BABCOCK RCY MAXIM Minneapolis, Minn. 65 Market St., | ¢ a Delta Division San Francisco 7 BENJ. F. PAINTER > . ren esident 424 Hamilton Nat'l Bank Bidg- = w TREADWAY GRAVELY STEWART Chattanooga, Tenn. 503 Main St.. i Pa Hudson Division Danville, Va DR. LAWRENCE J. DUNN . ul Manager 480 East 19th St., Rocky Rountein Division RUSSELL Brooklyn. N. Y. PAUL M. SEGAL Ridg Midwest Division .y~-. Ont PORTER H. QUINBY ae a , Box 134A, Route 6, . ; "WOODRUFF Omaha, Neb. Southeastern Division amt ey New England Division ) - wes -9-~ ge DR. ELLIOTT A. WHITE c/o Dobhs & Wey Co. ’ 4 Parkway, Atlanta, Ga. | Division Hanover, N. H. West Gulf Division | DARR Northwestern Division FRANK M. CORLETT | Highland Park, K. W. WEINGARTEN 2515 Catherine St., Mich Z 3219 No. 24th St., Dallas, Tex | Tacoma, Wash. ‘ a | 7 | . . ~ . =) | | Ad feneral Correspondence to Executive Headquarters, Hartford, Conn, | i = 7 —— 6 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 9

EDITORIALS Winter OMES the Fall’, as the movie title writers would put it. Once again our vacations are over, the harvest moon is here, and there’s a zip in the air 0’ mornings that announces the arrival of the super-DX season of the northern hemis- phere. (Imagine writing this kind of stuff in middle August, as we must do to meet our October number. The bromidity to- day—excuse us, the humidity—is perfectly terrible, and the static was fierce last night. But that’s all right—by the time these lines reach your eye, O Gentle Reader, there will be a harvest moon and a zip in the air, and we'll all be feeling the lure of DX again. Then, if not now, we'll know full well that the poets aren’t talking to us when they sorrow over the melancholy days of autumn.) We wish we were good at gazing into this other kind of crystal by which one can read the future. We'd like to be able to im- agine what variety of wonders the coming winter season holds in store for us. We've never dared to guess high enough, tho so we decline this time. But we do know that already, counting far removed colonies as separate “countries”, there are about sixty different countries on the air, with many more coming, so there is going to be plenty of world-wide DX fishing this winter and lots of sport. And with the various exploring expeditions in out-of-the-way places depending on amateur communica- tion for their contact, there is going to be plenty of interest to keep everybody on their toes. We offer a few tips. (1) The lower por- tion of our “40-meter band” is unnecessarily crowded. Why should everybody aim at the lower fringe of that band? Foreign DX men tell us that QSO’s would be much better and easier if more fellows would move up-into the top half of that band. Try it. (2) Don’t overlook the possibilities of 20 meters. All too few are trying it. Many of those who do, complain to us that there aren’t enough stations there to keep things interesting. But their DX results are ex- ceptionally fine, which shows that many of us are passing a good bet. (3) By all means stay within your authorized wave- bands. When you get over the fence you’re in somebody else’s pasture and gum- ming up all the traffic. Please keep Headquarters posted on new countries worked and on the QRA of new stations that have their first QSO with you, so that we may have the addresses for QSL purposes. And now to work Atlantis, Mars, Pata- gonia and Zanzibar! A Job for the Clubs E HAVE commented many times on W the fact that there is a large body of radio experimenters who would like to know more about our own brand of amateur radio. We have said that these people possess the necessary ability—that any BCL who can build his own neutrodyne or superheterodyne and make it work can build his own short-wave transmitter and tuner and make them work if only he has a little help. But learning the code is the real stumbling block. We know that it is not so hard; but when one stands on the outside looking in it appears very hard and it takes considerable courage to make the plunge. That is the real difficulty: making the plunge. After one is in, as we all know from experience, progress is rapid and sure. It looks, then, as if one of the most impor- tant things we could do to help the big group of fine prospective amateurs in the offing is to lend a hand in this matter of learning the code. To this end we’d like to suggest that it would be a very splendid thing if our numerous clubs thruout the country would start free code classes. An example of what can be done in that direction is occurring here in Hartford where one of the newspapers is running a free code class under the direction of a capable amateur. A class of 120 BCLs is meeting twice a week. Their average age is 35 years

Page 10

and n fine a viewp have pends past I for tl are not all thele teur they 1 letter was wint¢ We kr ates ¥ omeec A drear beer prod it ha duti« ous ¢ the here The Hand) ager, only know becau amate his de inside signed ning o QST October, 1926 em are capable of becoming They have the maturity of omes with years, and they r measure of financial inde- ) the average amateur of the They ought to be er couraged ‘the art. Altho some of them the code out of curiosity, f them say that they intend r stations soon. Of course eighty percent will, but none- worthwhile addition to ama- certain to result. And are ne? By the end of the third ey had learned half of the alphabet, most of the class imple words made up of half of the alphabet they ite of eight words a minute! first free code class ever held clubs have managed them in s success and the apprecia- t are typical. And here’s need for this kind of service ever before, and early au- ideal time for starting it, raduates may have a full f opportunity before them. ng so valuable that our affili- » right now to help Ama- We commend the idea to the e clubs. How about it, Our Handbook have the honor of announcing o Amateur’s Handbook”, the handbook we have been it for several years. It has time coming, for it has been staff at Headquarters and rked on along with our other already crowded. A strenu- been made to present it for the winter DX season, and been written by Mr. F. E. R.L. Communications Man- qualified for the job not of his sound engineering perhaps more particularly isiness of actually operating ns is the subject with which t deals daily and he knows it The Handbook has been de- f equal interest to the begin- the average amateur, and the past master at the game. For the beginner it starts at the beginning and tells what amateur radio is, what the League is, why it is and how it works, how to become a trans- mitting amateur, how to operate, and how to build a station. For the amateur al- ready arrived it is both a manual on ama- teur practice and a textbook on amateur construction and operation, describing the building of transmitting and receiving ap- paratus and their numerous accessories with enough “theory” to understand the “why” of everything in the amateur station. We are justifiably proud of our Hand- book. We believe it will be of the greatest value to everyone with even the remotest in- terest in the fascinating hobby of amateur radio. Further particuiars will be found in the advertising section of this issue. The Fieldman’s Trip RTHUR A. HEBERT, the League's treasurer, is a man of many titles and duties. Among his titles is that of “Fieldman”, the League’s traveling contact representative with the membership. The Executive Committee has just authorized another trip around the country by Mr. He- bert. In the latter part of September he will leave Hartford on a 12,000-mile trip, not returning to his desk here untii early December.First he goes all the way across Canada to Vancouver, down the West Coast, then thru the southwestern, central and southern states, and home again. During this ten-weeks’ trip Mr. Hebert will meet many thousands of our members, at conventions, ham-fests, little local gatherings, individual visits. Meetings are being arranged along his itinerary by the local Communications officials, and your local official will know if he is coming to your town. He wants to meet as many of you as possible, to tell you the story of the League, to answer your questions. Save up your troubles, too, and tell them to him; if there are any that he can’t unravel on the spot he will bring them back to the Executive Committee. We have found these contact trips between Headquarters and the membership one of the most help- ful things imaginable in keeping A.R.R.L. the smooth-running organization it is, and we hope this trip will be equally success- ful. Don’t miss meeting “Hebie”. K. B. W. v* ing rat wa abe the plu cer me ‘ja

Page 11

October, 1926 LTHOUGH the tendency nowadays to use shorter and shorter wave- lengths in all radio communication is a very marked one, it is far from true that the majority of stations is operating on wavelengths below 200 meters. There are more stations in regular opera- tion above 200 meters (and out of the broadcasting band, too) than there ever were. No amateur station can be said to be really complete unless its receiving equip- ment is designed to take in all wavelengths in which radio communication is going on. Old-Timer, as well as beginner will find that there is a lot of fun awaiting him from listening to telegraph work on wavelengths of 600 meters and up. It has been necessary, in the past, to use it least three, and sometimes four, complete receivers to cover the wavelengths between 15 and 19,000 meters. Such an array of re- ceiving apparatus is disappointing. In addi- tion to requiring the expenditure of a con- siderable amount of money, the receivers must be spread out all over the operating table where it is inconvenient to tune them, and each receiver requires its detector and amplifier, or a common amplifier which can be cut in on individual detector circuits. The latter layout begins to get complicated and very inconvenient. With all this in mind, the job of building a single all-wave receiver by means of which all of the useful radio frequencies could be covered, was undertaken. Obviously, in covering such an enormous range it is go- QST Covering All Wavelengths By John M. Clayton, Asst. Technical Editor tween them and on material other than that of the street-paving variety the losses in- curred in such a system should be incon- sequential. It is also quite obvious that the same tun- ing condenser in the secondary circuit is going to be hopelessly out of proportion at opposite ends of the wavelength spectrum. A 125-uufd. tuning condenser is o.k. for the “SUCH AN ARRAY OF RECEIVING APPARATUS—” 20-, 40- and 80-meter bands, and even up to 600 meters, but at 4,000 meters this con- denser becomes a good vernier device and at 15,000 meters it is even too small to use as a beat note control! Conversely a 625-upfd. tuning condenser is o.k. down to and even through the broadcasting band but at 20, 40 and 60 meters it is out of the question. There are several methods by means of which the condenser problem can be solved satisfactorily. Probably the easiest con- sists in the use of a _ tan- dem condenser, one _ section of which has the necessary short wave cavacity, and the other sec- tion, when combined with the first, has the required long wave capacity. The point of transi- tion from short wave to long wave capacity is not a very def- inite one. From the standpoint of ease of tuning and covering the bands quickly it probably lies somewhere in the vicinity of 700 or 800 meters. Given a tan- R, AF i J AF 2 ’ ; Gi | ~~ | i § Cy i = A c Cs ™ Cc + Hele jeans “a}e}0]0|e-— ajelefefep - 45 + - 45 ¢ FIG! COMPLETE CIRCUIT ing to be necessary to change inductances rather often. We have our plug-in short wave systems, and for work on wavelengths above 1,000 meters, honeycomb coils minus their mud bases are far from hopeless. The plug-in arrangement is as good as any, and certainly a lot more convenient than any method I know of. If the “plugs” and “jacks” are mounted with good spacing be- dem condenser with short-and long-wave capacity it merely be- comes necessary to provide a simple loss-less switching arrangement to cut in the required capacity, and that prob- lem Has been solved. * The Circuit There is nothing unusual about the cir- cuit. It is the familiar series condenser re- generation control affair first shown in this country by Weagant in his sq-called “X”

Page 12

10 QST October, 1926 circuit tages of audio frequency am- feet long the 1,500-uufd. condenser is re- plif l, one stage being in use quired. A smaller condenser will necessitate all of for the shorter waves and a correspondingly increased number of pri- an a ge when long wave recep- mary coils on the long waves. Condenser tion unges is desired. The ad- Cl is a i1-ufd., “blocking” condenser not FIG.2 ! VIEW OF RECEIVER WITH 600 METER COILS dition not required in short wave wor ond stage is a great help whet 600 meters and long waves f t nna. If the antenna is a 1 single stage will give all ne one wants. A _ 1,500- needed in this receiver but shown in case radio amplification is to be added ahead of the detector. The secondary S is tuned by means of the tandem condenser, one section of which has a maximum capacity of 125 ywufd. and the other section a capacity of 500 pufd. The C2 (125 wufd.) section is con- nected permanently across the secondary, C3 being cut in parallel on the higher waves by means of switch X. Regeneration is controlled by means of condenser C5, having a maximum capacity of 500 pufd. A capacity of this size is per- fectly o.k. throughout all wavebands. In the amateur bands the use of a 500-uufd. re- generation condenser is a distinct advantage since it requires a small tickler having few turns, causing less detuning of the second- ary circuit. A word of caution regarding the choke coil is not amiss. If a resistance is used in place of the choke, it will be necessary to change it as the wavelength of the receiver jumps from the hambands into the medium and long waves. If, on the other hand, a choke coil of the proper size is used, the re- FIG.3 REAR VIEW OF RECEIVER WITH LONG WAVE COILS enna condenser (C) is pro- ng the antenna circuit. A , er may be used here but un- less ng antenna is at least 250 generation control will be smooth in the hambands and in the broadcast range. Somewhere in the neighborhood of 600 meters the choke does not come into the ar-

Page 13

October, 1926 gument at all, the impedance of the primary of the amplifying transformer serving the purpose admirably. All we need to worry about, then, is the short wave action cf the choke. The secondary of an old int~rmedi- ate frequency amplifying trazsformer, stripped of some of its turns, works out en- tirely satisfactorily for use on all wave- lengths. The grid condenser C4 is a compromise between low capacity for short waves and higher capacity for longer ones. It has a capacity of 150 pwufd. For spark reception on 600 meters this capacity is about the minimum, the signal strength dropping off if a smaller capacity is used. For C, W. re- QsT 11 longer waves, anyway. It is a good idea, though, to use a metal (aluminum) panel. All chances of disturbing body capacity ef- fects are eliminated forever. The aluminum is much easier to work than bakelite or hard rubber and with the finish shown in the photographs the appearance of the com- plete receiver is greatly enhanced. In Fig. 2 is shown a front view of the receiver. From left to right the dials con- trol primary series condenser (C), second- ary tuning condenser (C2-C3) and regener- ation control condenser C5. The small knob between the first two dials is attached to the rheostat, R, which is a 6-ohm General Radio type 301. The knob between the last FIG, 4 ception, however, the grid condenser with a 50-uufd. capacity seems to give as good signal strength on the long waves as a 250- wifd. condenser does. The grid leak should have a _ resistance between 5 and 10 megohms, depending upon the type of tube and detector plate voltage. The Receiver Layout It was the writer’s original intention to build the receiver in a completely shielded cabinet, mounting the coils inside. A little thought, though, brought the conclusion that the receiver itself would have to be quite large to accommodate the coils and give plenty of clearance, and also the idea of having to open the lid of the cabinet, stand up and plug in coils and then close the lid when going from one wave band to another did not seem particularly appealing. Con- sequently the coils were arranged to plug in to jacks mounted on a strip which pro- jects through the top of the cabinet. Yes, a direct steal from the excellent Grebe CR 18 short wave receiver. With the coils mounted outside of the cabinet there is nothing to be gained by shielding the cabinet. Prob- ably shielding would help very little on the TOP VIEW. NOTE TERMINAL STRIP FOR PLUG-IN COILS two condenser dials is attached to the con- denser switch “X”. This switch will be de- scribed in detail further on. The jacks are in the first and second audio frequency stages. As the panel is connected to the negative terminal of the B battery it is necessary to insulate the jack frames from the panel. This is done by means of a piece of quarter-inch bakelite strip to which the jacks are attached. The bakelite is held against the rear of the panel, the heads of the jacks protruding through oversize holes cut in the panel. A detailed panel layout and list of parts are not required. The average person will use the parts he has on hand. Suffice to say that the panel is 8 inches Ligh, 18% inches long and 1/16 inch thick, and is of aluminum. A piece of aluminum this size can be purchased from almost any tinsmith for about six bits. After all of the holes have been drilled in the panel, the very pretty crystalline finish can be put on by the Gen- eral Radio Company of Cambridge, Mass. Unfortunately this finish is not a home- brew process. It requires very accurate ad- justment and maintenance of temperature in the oven in which the panel and varnish baked. General Radio is prepared to are

Page 14

12 QSsT October, 1926 finish ar 1etal up to a piece almost as manner the grid jack is spaced from the large at very modest prices. filament circuit jack a little further than The wn in Fig. 2 are National the spacing between the others. One and variabl type, the center dial being three quarters inch from the grid terminal one of test models provided with a one of the antenna coil jacks is mounted. lamp f ating the scale. A variable An inch to the left is the “ground” jack, ratio d y handy since the same con- connected to the stator plates of the an- trol of not desirable on all wave- length In | ars a rear view of the re- ceiver be noted that the plug-in strip f ls is supported by two bake- lite ro¢ n this case, are % inch in diamet« exact length of these rods will de n the thickness of your base- board ar ht of your panel. With the Si/ver Contacts 725 puch Section pH Ree e \ Condenser ~~ Brass /rsulatione strip I =) le rod THE CAPACITY SWITCH strip it n top of the supporting rods, the tor trip should be about flush with 1 le of the top of the cabinet. Thres re mounted in a line at the rear of eboard, and the two trans- former inted behind the pillars. Fig ws a top view of the re- ceiver ndenser at the left is the 1.500-1 nna series condenser and is a Car e 176-C. In the middle is the s] enser, formerly a ‘Cardwell 156-B, tion of which originally had a capa f 500 wufd. One section was ripped vn to have four stator and three rotor }] the resulting capacity being about The Cardwell people have just | it a condenser just for this work wn in Fig. 7 and is known as their 1 D. Its sections have capac- ities of nd 500-uwufd. respectively. It is sup} th or without a metal shield betwee ns. The shielded type is to be pref The condenser at the right is a 500 Cardwell type 123-B. The | n terminal strip shown in the rear of | bears some examination. Start- ing fron ht to left the first terminal jack is cont to the plate of the detector tube; | nd jack goes to the stator plates of * regeneration condenser; the third e filament end of the second- ary the fourth jack is the grid termina e secondary. As the second- aries ers are mounted as a unit, to prever ne the coils in a reversed tenna series condenser, and an inch further along (the last jack at the left) is another antenna terminal, the two antenna jacks being connected to each other. If the an- tenna coils are mounted “off center”, in their supporting strips, four combin- ations of antenna coupling can be obtained. Two degrees of coupling are secured when the antenna coil is plugged into the Ist and 2nd jacks and the 2nd and 3rd jacks, and two additional couplings are secured when the coil is turned around and inserted in in a reverse direction. No antenna binding post is provided in the cabinet. The an- tenna lead-in terminates on one of the G-R plugs and is plugged into the unused an- tenna jack on the coil terminal strip. The Capacity Change Switch Between the two condensers at the right of Fig. 4 you can make out the outlines of the switch used to cut in the 500-yufd. sec- tion of the middle condenser. At the outset let it be said that if this switch is to intro- duce any losses whatsoever by all means these losses should occur on the long wave side, where they can be added to the al- ready great losses inherent in the larger re- ceiving coils. If the switch introduces any loss or requires any additional wiring or dead-ends on the short wave side, the short wave part of the receiver may be spoiled. Through the panel a hole large enough to accommodate a bushing from an old switch is drilled. (See. Figs. 4 and 5.) This bushing should have a hole a quarter of an inch in diameter, and should be fitted with a lock nut. Through the bushing hole a length of quarter-inch bakelite rod is passed. The panel end of this rod carries a small G-R rheostat type knob. Back of the panel and against the bushing a collar with set screw (also from a G-R rheostat) is at- tached. Between the collar and the bush- ing a spring washer is placed, the collar pressing tightly against the washer. The proper tension and “feel” to the switch is secured by the proper position of the washer. At the other end of the bakelite rod: another bushing (from still another rheostat) is placed. To this bushing a piece of brass strip a quarter of an inch wide is soldered. The strip should be long enough, and should be so placed on the rod, to come within a quarter of an inch of one of the supporting screws on the 125-yufd. section of the tuning condenser. Under the bolts of this screw a short right angle piece of spring material is placed. This spring has

Page 15

October, 1926 a piece of silver soldered to it. Another hunk of silver is soldered to the “arm” of the switch at that point at which contact is made with the first piece of silver. Com- ment is lacking from whence the silver came. By bending the switch arm back and forth a few times it will be possible to find the position in which the switch contacts rub in good electrical contact when the arm is turned. Note that when the switch is open the only thing that has QsT 13 inches long. The spacers supporting the two narrow clamping strips are Cardwell con- denser mounting pillars, being known as their part No. 4741. The short wave coils are clamped between two pieces of 3/16 inch bakelite % inch wide and 4% inches long. The long wave coils (honeycombs) are supported in the same manner except that separate top strips are used on each coil to take care of the different thicknesses been added to the short wave side of the receiver is a piece of brass angle a quarter of an inch long. A flexible lead is connected to the switch arm and one of the support- ing screws on the 500-ufd. section. Repeated tests have failed to show any audible losses in the switch on the long wave side. The Coils Short wave plug-in coils for all wavelengths from 15 to 550 meters are available from a number of radio manufacturers. These coils are of such excellent. con- struction and so reasonably priced it hardly pays to try to make ‘them yourself. If you want to build your own, however, the Hammarlund three inch coils wound with number 16 S.C.C. wire, 10 turns to the inch can be cut up into primaries and secondaries of the proper size. For reference, secondary and : ; FIG. 6 tickler turns are given in the table below. The above Hammarlund coil we have ar- bitrarily called No. 1. Also we have called their 3-inch coils wound with No. 24 S.C.C. wire (43 turns to the inch) No. 2. All of the coils are mounted with second- SOME OF THE PLUG-IN COILS DESCRIBED IN TEXT of the coils. In all cases the correct primary coil will depend upon the size of your antenna and the size of the primary series condenser. The above primary coils can be used with Table of Coils Tuning Range in Unit No. Pri. Turns Sec Tickler Capa city Meters Type of Coil i 7 4 3 125 uufd. 15-32 Hammarlund No, 1 2 7 6 4 3 31-55 v 3 q 17 9 50-105 4 q7 49 18 105-210 - 5 15-25 45 19 625 uufd. 200-550 Hammarlund No. 2 6 150-200 150 75 125 wufd. 550-690 Honeycombs “ “ “ 625 uwufd. 590-1,600 rm q “ -40 40 (ap proximately same as No 6) Hammarlund No. 3 8 400-600 400 200 625 1,500-4,500 Honeycombs 9 750-1,000 1,000 400 uufd 4,000-14,000 oe 10 1,000-1,500 1,500 600 6,000-18,000 ” ary and tickler in the same strip. The their respective secondary units when the primaries are mounted on separate strips. The construction’ of the coil mountings can be seen from a glance at Fig. 6. The base on which the plugs are mounted is of inch wide and 4% quarter-inch bakelite, % antenna has a total length of at least 135 feet. strongly above 200 meters. is used, half the number of primary coils An antenna at least 250 feet long is recommended for all reception If a very long antenna

Page 16

14 will be r¢ The br nicely | cast p! ‘ FIG 7 THI conde nec and the In Fig above t Hammat appears the Aer in plug meters As the t close ti with | layed ( wave the mour such for the into the At C al for 590 table). the filan is head honeyco1 6. At I coil; F mountir same t (H, I ar ticklers meters I The from tl! The operate short w is taker wave QsT October, 1926 und can be covered quite » Aero Products broad- with the 125-uufd. tuning DWELL 200-D DUAL CONDENSER smaller of the two coils usfd. tuning capacity. of the coils listed in the hown. At A, the Grebe- eter secondary and tickler 2 in the table). At B is 80-meter coil, available r all waves from 15 to 550 25-upfd. tuning condenser. on the Aero coils are too same spacing to be used , the set mounting strip is honeycombs, and the short t home-made) are fitted to p by means of an adapter vn at D. This adapter is The adapter is plugged and the coils in the adapter. Hammarlund type of coil er reception (No. 7 in the r for this coil fits inside of f the secondary. This coil above the corresponding rement shown at H of Fig. /-turn short wave primary 0-turn honeycomb primary G is a 600-turn coil of the three groups at the bottom honeycomb secondaries and vaves between 590 and 14,000 7, 8 and 9 in the table). ndary-tickler is missing erating the Receiver ve side of the receiver is anner similar to any other ver except that when time the primary to the received rmonic thereof the signal strength is greatly increased. The 1,500- uufd, primary condenser will allow you to use harmonic tuning in the primary circuit no matter what size antenna you are using. On broadcast waves and especially at 600 meters and up, the set is tuned in the follow- ing manner; first the correct primary and secondary coils (from the table) are plugged in and the secondary is tuned by varying both secondary and tickler condensers until the desired signal has been picked up. Then, leaving the secondary alone, the primary and tickler condensers are varied until the primary is in resonance with the secondary. A slight readjustment of secondary tuning may then be necessary, especially if the original secondary tuning was done with the primary circuit way off tune. For 600- meter work the Hammarlund coils plus a honeycomb primary make the best spark re- ceiver the weiter bee ever monkeyed with. Who’s Who Unless you have kept track of communi- cation in bands other than the ham ones for the past few years you may miss out on a lot of things because you are not listening in the proper place. The broadcast band is pretty well known. Ship calling, answer- ing, SOS work and messages relating to traffic handling occur on 600 meters. Actual traffic between smaller ships and land oc- curs on 660, 731 and 874 meters. The radio compass wave is still 800 meters. On 952 meters the government has a wave where a number of naval vessels and naval land sta- tions can be heard batting them off hour after hour. Radio beacons (those things making bunches of dashes and never sign- ing) are found on 1,000 meters. Then come the intermediate waves where high power land stations work high power ships. These waves are around 1052, and 1578 to 2499 meters. In this band will be found the high power tube stations WCC, WSH, WAX, KPH and so on, working the large liners. An- other band from 2499 to 3156 finds only government stations, among them being the ever faithful NAA on time ticks, weather, hydrographic information and press. NAA’s time still comes off at 10 P.M. (E.S.T.) fol- lowed by an hour of weather and press start- ing around 11 P.M. NSS sends time at the same time as NAA and follows this im- mediately (usually) with press. Lately NKF has been sending time ticks with the rest on 74 meters although it is understood that this is an experimental time service and may be discontinued. At around 11:15 P.M. WSA sends press on 650 meters, spark, and WSH on about 2400 C. W., both sta- tions being keyed from the same source. On 2200 meters WCC sends press at 9 A.M., 5 P.M. and at 12:18 A.M. WRQ starts his press on 13505 meters. These are only a very very few of the hun-

Page 17

October, 1926 dreds of stations operating regularly on waves between 600 and 18,000 meters. After you have listened in on these waves for a little while you will find there is a great kick to be had from jumping from one sta- tion to another. The 600-meter kick alone is worth the candle! Central Division Convention (Ohio State) AN anyone imagine a big amusement €° park being thrown open to radio ama- teurs and every form of amusements free of charge to all members of the A.R.R.L. —the “Open Sesame” being the League em- blem stamped in red on the back of one’s right hand. This is no dream fellows, but it came to pass at the 5th Annual Ohio State Convention at Cleveland, on August 20-21, when Mr. Harvey Humphrey, 8 APY, owner and manager of Euclid Beach Park, literally turned the place over to the “gang” all Saturday. Bright and early Friday morning, dele- gates from all over the state began to ar- rive and by two o’clock the register showed an attendance of 125 including a number from adjoining states. 5AQM from Little Rock, Ark. came from the farthest point until just before the banquet when Alberto Lopez of Caracas, Venezuela, made an ap- pearance. Just as had been announced, this was a convention in which AMUSEMENT was the foreword and the convention committee certainly kept its word, and with the ex- ception of the traffic meeting conducted by Storck, 8 BYN, the new Section Communica- tions Manager, and the open technical m-et- ing with Thatcher, 8 ZE, and Crossley of 8XE in charge, there was nothing but fraternalism existing. Fred Schnell, former T. M., Director Darr and Hebert, A.R.R.L. Treasurer, had the dream of their childhood days come true when they were able to spend a whole day on the merry-go-rounds, toboggans, etc.. “free-for-nothing.” From the way the rest of the fellows took advantage of everything it must have been the ambition of every- body. There were athletic events of all sorts, and Tom Cunningham showed himself a real Sports Manager. Of greatest interest was the ball-zame between the visitors and the Cleveland boys with Cleveland winning 1 to 0 and making the most hits. The banquet was held at the Park and 8 APY’s chef certanly knows how to cook a dinner for a hungry lot of brass-pounders. The speakers of the evening were Fred Schnell of the C. F. Burgess Laboratories QSsT 15 who gave an interesting illustrated lecture of his NRRL trip; A. A. Hebert, of Head- quarters, spoke about Headquarters’ Staff and its daily routine; E. E. Horine of the National Carbon Co. spoke in a humorous vein and showed that he is quite a “bug’”’. After the events of the evening everybody @€K and 822 ow THE HIGH VOLTAGE EWD OP THE NOW PLTERED, RiPPce of THE TURNER AT EUCLID BEACH PARK. WE Sari “on™ BSuT RATHER WE Woucd SAY- TUN OER, ovER and Bemnn”™ (TAS SeounsLy our of Phase - wr NEVER LAGGED | av returned to the Hotel Winton where a mid- night supper was served; the distribution of prizes made, and an initiation into the R.O.W.H. staged. Great credit is due the Cleveland Wire- less Associaation, the Cleveland Radio Ama- teur Ass’n, J. P. Turner and N. H. Gimmy, Chairman, for the success of the convention. And last but not least to SAPY for so un- selfishly extending the hospitality of his park. It is impossible to give the names of manu- facturers and dealers who contributed so many valuable prizes but we wish to public- ly thank them for their cooperation. In the words of the “young squirt” it was THE best convention ever. YOUNGSTOWN was chosen for next year’s convention. —A. A. H. tra A complete list of call letters of all Canadian hams can be obtained for twenty- five cents from Department of Marine and Fisheries, Ottawa, Canada.

Page 18

QsT October, 1926 The Length of the Hertz Antenna By G. Wm. Lang” hould a 40-meter Hertzian f coupling to linear an- ve been described, as have polarized transmission and heir manner of working at e and otherwise—but what f these antennas? The tennas the wire length in feet is 1.46 times the fundamental wavelength in meters and for vertical antennas the wire length in feet is 1.40 times the wavelength in meters. Thus if we wish to operate at 40 meters with a horizontal antenna we multiply 40 by 1.46 and get 58.5 feet as the length of the necessary system’. Antenna No. 3 was not used in getting an average for the K BY WHICH A Is MULTIPLIED TO GET WIRE LENGTH FUNDAMENTAL WAVELENGTH horizontal group. he reason is that this was a_ wire laid on the floor. Right be- >| Meters Feet | Meters neath this floor were five water 1.409 4275 1.410 4275 1. 57 4460 1.418 4300 1.415 4320 1.47 .4480 1.435 4380 1.410 .4300 1.465 4450 ab a WNW W& °o 2 wvWO@en - coo oun 980400 Ww 8 9 = rT. —~ @& pipes in active service. I think this justifies omitting it from the group. These constants have applied to numerous’ an- tennas and an error of less than 5% resulted. Try it and let QST know of the result. The table also shows tests on antennas of other forms and the constants for those are been ( t & Lt TABLE SH REMENTS MADE AND CONSTANTS FOR EACH ANTENNA seen to fall between the H and V types, showing that the con- writer purely series ateurs putting them up k and then resorting to nd coils to get the an- tenna i nee with the transmitter. In su antenna is not being worked damental (and at this time we to think of that as be- ing the le operating condition). At 1K ter tested various Hertz antenna tested the Hertz an- tennas | 1KF. Some were ver- tical, sor rizontal, and still others had vert rizontal sections but all were H nnas.' From these ex- perimer teresting results were obtained important of which was the fort termining the length of the Her tenna for a given wave- length The were first measured from tip to ti; f ep. to end of antenna. The fu | wavelength was then found sid of an oscillator and wavem¢ find that for horizontal an- * Depar Radio Operations, Radio Station WBZ. H k, Boston, Massachusetts. 1 4 i before in QST—there is room for are te the proper definition of “Hertziar Personally I am inclined to Mr. Lang t any antenna is Hertzian when the ¢.p ma are more or less alike and the syster ed ungrounded. However it is perfect!) reve that only straight-line an- tenna tzian. Tech . stant varies with the angle be- tween the wires and ground. 2. For those of us who own meter sticks and don’t want to think in two sorts of units the constants be- come .44 for horizontal antennas and .43 for vertical antennas. It seems a great pity that we must tolerate this double standard in radio. Tech. Ed. 3. Some other variable seems involved also. West- man and Clayton on p. 46 of QST for May, 1926 gave results for bent antenna systems in which the con- stant was almost exactly 1.5 (.456 for the metric system). This was for the usual form of antenna in which the c.p. is horizontal and underneath a hori- zontal antenna. both ~ in the same direction from the station. Tech. E : Mp Strays'}) ; At the June meeting of the Institute of Radio Engineers held in New York City, Dr. Greenleaf W. Pickard was awarded the 1926 Institute Medal of Honor for his contributions to the radio art, and particu- larly as recognition in the pioneering work done by Dr. Pickard in the field of crystal detectors, coil antennas, wave propagation and atmospheric disturbances. Our hearti- est congrats to a man whom there is no more deserving of such honor. Bartholomew of pr4SA was in the H. office recently after a tour of these United States and a trip to Vancouver, B. C. Additions to the number of crystal-con- trolled stations are as follows: 1CK, 4TR, 9ICDT, 2DS, 2BRB and 2MU,

Page 19

October, 1926 QSsST Cheap Measuring Instruments By Walter T. Lang* HE amateur experimenter often has a need for electrical measuring in- struments of various ranges, yet does not have available the means to purchase them. The following discussion shows how any experimenter may use for a number of purposes, not requiring an ex- ceptional degree of accuracy, a simple pocket volt-ammeter, costing in the neigh- borhood of a dollar. A “Sterling” in- strument was used by the writer. These meters have both ammeter and voltmeter seales. The voltmeter portion of the in- strument only, in conjunction with auxiliary apparatus, is used for the purposes outlined. Voltmeters To increase the range of the voltmeter from 0-10v to 0-80v is a simple matter, requiring only the use of @ series re- sistance, Fig. 1. For this purpose a 50-wa*t Edison Gem’ carbon lamp gave satisfactory results, allowing a deflection of 6.5 on a source of 50 volts. The value for the resistance of a 50-watt Edison Gem was personally obtained by the writer, and has been checked with dif- ferent specimens. It should be remembered that the Gem lamp, although having a carbon filament, has an increase of re- sistance with an increase of temperature. A suggestion to get constant resistance, as yet untried by the writer is to use a 25- watt grey carbon, and a 25-watt Gem in shunt, the rising characteristic of one be- ing depended on to compensate the dropping of the other. The best way to calibrate the instrument is to borrow a good meter of approximately the range desired afd take the reading of the pocket meter with resistance connected 1—Gem lamps are scarce creatures these days - many of us never saw one. A Ward Leonard Cart- ridge resistance unit of 200 ohms does the work ex- cellently provided one has the resistance measured on a test box or Wheatstone Bridge. The resistance given on the label is not supposed to be exact. Tech. Ed * Roebling Dormitory, Rennselaer Polytechnic In- stitute, Troy, N. Y against the reading of the borrowed meter at the various voltages obtainable with a variable “B” battery. eee anf trve curve w We ‘7 (/ Reading in voles a) 25 $0 3.60 Actual Volts FIG. 2 REMEMBER THIS IS ONLY A SAMPLE CURVE. IT WILL NOT FIT YOUR METER If it is not possible to borrow such an instrument a very rough calibration may be made as follows. Purchase a new B battery and have the voltage across the various taps tested with a good voltmeter. Record all these readings. The home-con- nected meter should be calibrated across these same taps as soon after as possible, and should be left connected only as long as it is necessary for an accurate reading as the device consumes considerable current, and may cause a drop in battery voltage if left on too long. In either of the above two cases it is ad- visable to plot a curve as (due to the fact that change in temperature of the lamp- filament causes a change in resistance) the factor of proportionality is not absolutely constant. The curve will droop slightly at the higher readings being shaped some- what as Fig. 2A. For. rough work, a straight line can be drawn, approximating the curve quite closely, then for rough work we can use a multiplying constant gotten as follows. On line B (Fig. 2) note the value on the lower (horizontal) scale which corresponds to 10 volts in left (vertical) scale. In the ex- ample shown in Fig. 2, the value is 80 volts. From this we know that (for rough

Page 20

volts volt curve inste not kno tridg« can gt QsT October, 1926 can always find the true plying the pocket meter’s n other words by 8. Of not always 8, it is just 4 or 9-%—but it can be the Meter Resistance nethods of using the in- cessary to find its re- ation by which this may sily is an application of current flowing through tance. The process is as ent through the meter voltage read on the meter resistance of the meter. not know the meter re- fortunately it can be ict that: True Volts—Read Volts Lamp R. True volts—Read volts “Lamp R. taken from the curve. A to choose a point such between true and read resistance of the specified tage is very close to 215 (Reading of meter)=— f meter) ling is simply the read between true and read y be easily found on the lifficulty may be avoided tance of 200 ohms is used p. The resistance need 1 ohms but it must be trust the label on a car- yr other cheap resistance r measured by someone who et or Wheatstone Bridge. Milliam meter The meter may be used also as a milliam- meter in connection with circuits having a comparatively high external resistance, such as the plate circuit of a vacuum tube. A single receiving tube will not give a readable deflection but with three or more tubes, or a sending tube, the readings may be made with fair accuracy, though they are not high. Simply connect in series with the B battery at the minus side as shown in Fig. 4A so as to include detector tube current which may be taken off at a dif- ferent positive point from that supplied the amplifiers. The same scheme can be ap- plied to transmitters as shown in Fig. 4B. The condenser C may be used if desired to keep the meter from excessive swinging. The equation is: Reading in volts x 1000 Milliamps= Resistance of meter Low Reading Ammeter The experimenter often wants to measure current of a value less than ore ampere, in a circuit whose resistance is not such as to make negligible that of the meter. Such B battery. The voltmeter part of the instrument is used with a shunt resistance, A ® © © Net Ne! i. FIG. 5 MAKING AN AMMETER SHUNT as the ammeter will not be readable on cur- rents of such a small value. Take the re- sistance coils of two rheostats (new or old) rated at 4 ohms each, or thereabouts. Find the resistance of each as follows: First con- nect as in Fig. 5A and read the current. Then connect as shown in Fig. 5B and read the voltage across coil 1. Finally connect as in 5C and read the voltage across coil 2. Since the resistance of the ammeter is negligible, Voltage (as in 5 B) Resistance of coil No. 1= Current (as in 5 A) also F Voltage (as in 5 C) Resistance of coil No. 2= aon Current (as in 5 A) Now connect the two coils in series as shown in Fig. 6B. Now the resultant re-

Page 21

October, 1926 sistance will be the sum of their separate resistances. A convenient way of connect- ing the two resistances is shown below in Fig. 6A. Note that the contact arms are removed, and-the free ends of the coils con- nected to the post to which these arms were formerly attached. For use the coils are connected in series with the circuit, and the voltmeter placed across their extreme terminals, The value of the current in amperes may be found as follows: E Current — 1 1 + — ) R. of coils 1 and 2 in series R. of meter This isn’t nearly as bad as it looks. We have already found everything but the volt- meter reading and can therefore multiply all the other things together once for all and say that: Current—Reading times K where it is understood that 1 1 K— ( —_——— > $$$ ) t.of meter R. of Coil No. 1 + R. of Coil No. 2 If one gets tired of multiplying by K it is easy enough to connect the rig up per- manently and make a new scale for the meter. Conclusions While the above do not exhaust the possi- bilities of the little instrument, they will furnish the amateur with some food for through a Vv doit fo . — hne Shunt Kine conection No.2 No. t "Shorting Switch Connection Assembly ~ FIG, 6 thought, possibly, as well as saving him a bit of money. The preceding discussion is not only thoroughly practical, but, with certain as- sumptions as to negligibility, is mathe- matically correct. The reader is advised to take readings carefully, with line of sight normal to face of instrument, to treat the instrument with great care, and not_to de- pend on the readings being in any case ac- curate to more than two figures. QST Grid Condenser and Leak Mounting VERY handy little device has just been placed on the market by the Inter- national Resistance Company of Philadelphia. It is the so-called Dur- ham Resistor Mounting, a combined grid condenser and grid leak mounting. The insulation is of high quality bakelite, whose resistance is said to be exceptional- ly great. The mounting is arranged to sit vertically on the receiver baseboard, so that connections to the grid circuit and es- pecially the tube socket, will be as short as possible, leaving the other end of the cir- cuit up in the air toward the secondary coil. The condenser clips are spaced to take the type 600 Micadons or any other grid con- denser of similar size, and the grid leak clips will fit all standard leaks. Two holes in the baseboard are provided for attach- ing the mounting to the baseboard. The mountings are also available in double units for use as grid and plate blocking units with resistors in a resistance coupled am- plifier, ; —J. M. C. — Me Strays Another Amateur Wins The “Popular Radio” Medal September Popular Radio announces the award of the “Popular Radio Medal for Con- spicuous Service” to another amateur, C. B. Harrison, 9DOZ, of Belleville, Ill., for meri- torious service at the time of the Southern Illinois tornado in March 1925. It was Harrison’s work to which we referred in our editorial in August QST, work unknown to us until that time. When a cyclone destroyed Murphysboro, [il., Harrison was called upon by the rail- road and county medical authorities to broadcast a call for doctors and nurses to meet @ special relief train which was being made up. He was at the time under three months’ suspension for some minor infrac- tion of regulation, but seized the bull by the horns and did the job. The relief train was jammed to capacity with voluntary workers! J. Andrew White writes another epic tale of amateur accomplishment in his account in P, R.

Page 22

QST October, 1926 rT H s DE —_ ALWAYS SOMETHING OUTSTANDING — OF NEW IN AMATEUR RADIO 7% THE past 20 venes 8 1909 19 SOME TONE EH ? wot? % THE GALENA DETECTOR AN MPROVEMENT CAME INTO USE IN TUNING DEVICES 1%3 THE OSCILLATION ne RATORS >, DISMAN TELED ACCOUNT OF WAR —————— 1920 1921 A | H THE SYNCHRONOUS 200 METERS GA?

Page 23

October, 1926 QsT Constructing and Erecting a Steel Mast By Perry O. Briggs” room, and a good sized bank account, yet do not want to risk their necks balancing on the top of ninety-foot “two by four”, here is a mast which can be erected in one piece by one man and will stand the elements indefinitely. Tall masts are not so numerous as they were, but any scheme that will work for an 80-foot mast is certainly good enough for a 50-foot mast. Three masts have been erected at 1BGF; all of which were suc- cessfully raised without any buckling. One of these masts consisted of six sections of galvanized roof drain pipe. Everything was arranged on the ground and the actual Fe those who have plenty of back yard MAST READY FOR HOISTING raising was accomplished in less than five minutes. However, the mast described in this article is 79° feet tall and is made up of four 22-foot sections of steel water pipe. Section 1 measures 3 inches inside diameter ; section 2, 24 inches; section 3, 13 inches; section 4, one inch. Reducing couplings are not used. The sections are telescoped into each other about three feet and are secured by four #2 inch bolts. Four three- inch collars with galvanized iron rings welded to them are bolted to the top of each section to receive the % inch guy wires. _ The first thing to be done is to provide a_ suitable foundation and guy anchors. For the foundation, a hole 18 inches square and two feet deep was filled with a mixture of concrete consisting of cement, sand and stone. A varnish can slightly over three inches in diameter was embedded to the rim of the can in the exact center of the concrete, and just before the cement “set” the can was removed thus making a socket * IBGF, 52 Girard Avenue, Hartfard, Connecticut. Builder of the tuner, originally described in QST, and now used in English speaking countries as the “1BGF “tuner” and in Latin American as the “Briggs Tuner ” for the foot of the mast. The guy anchors are 4” by 4” by 6’ long set in the ground at an angle of 60 degrees with cross pieces nailed on below the ground level to hold the enchors firmly in place. There are four guy anchors, each placed thirty feet from the base of the mast. The mast and guy wires were laid out as per diagram. A “hoisting joist” (E in the illustration) was secured to the base of the mast as shown in the small sketch. All the guys which were to go to the No. 1 guy anchor were secured to the upper end of this hoisting joist. A compound tackle was run from that point to the No. 1 guy anchor. Of course it is absolutely necessary to have the length of E equal to the distance between the mast foun- dation and the No. 1 guy anchor. It is also neces- sary to use four (not three) guy anchors so that the No. 2 and No. 4 guy wires will hold the mast straight as it goes up and the No. 3 guy wires will stop it when it gets there. It is simple to find the correct lengths of these wires, either by calculation or by a drawing to scale. Be sure to remember that you are interested in the finished length and that allowance must be made for each joint. All of this takes much less time than the usual step-by-step method of hoisting and adjusting. We found it convenient to make the length of E equal to % the height of the mast and to set the anchors this far out. METHOD OF SECURING HOISTING JOIST TO MAST JOINT AND GUY COLLAR When everything is arranged make sure that all bolts are tight, especially the clamps that hold the hoisting guys. The first mast erected at 1BGF had a nasty fall on account of the eyebolt in the upright pulling out. After the dust had cleared away and our eyes had returned to their normal size we made sure that everything was tight and ship-shape before the second attempt. Everything being set for the crucial mo- ment, grasp the “fall” of the four to one tackle blocks: pull gently, thus taking up the

Page 24

22 QsT , little harder. This first all the guy connections wires. Gradually the move earthward and the mast will enward. When the mast has reac] ingle of about forty-five degrees s and worries are over. The strair hoisting apparatus be- comes | and shortly you have the four hoisting joist in your hands a1 ng it to the ground your mast is Stake down the hoisting joist and he tackle and stay poles. Take off ng guys from the joist one at a fasten them to the No. 1. anchor g the four by four hoist- ing joist the mast to drop into its socket ement foundation. Then with th: a level straighten and tighten ection and its set of guy wires. nner true up the remain- ing sect y wires. Just bef ng our mast we applied a second hite paint and mast was erected w ring the paint and with- out dang r property. slack. N hard pu of the h hoisting

Northwestern Division Convention coma, Wash. 8th and 9th LI f the League and ama- A teu lially invited to attend the It will be held under the aus] Tacoma Radio Club. This w first Northwestern Divi- sion Cor nd a very good program has bee Headquarters is send- ing A. A lreasurer and Fieldman, and he message for the delegate Direct W 24th St hearing those being p1

October good Weingarten, 3219 No. Wash., will appreciate who contemplate ——— —————$<—

ELECTION NOTICE Members Residing in the New England, North- To All A R.R.I Central, H western Rocky Mour , luding Alaska), Roanoke, xin and West Gulf Divisions: ~ F by notified that an elec- tion for R.L. Director, for the term 1927-1928 to be held in each of the above D accordance with the Con- stitution ttention is invited to Sec. 1 of Art the Constitution, provid- ing for tl nment of A.R.R.L. affairs by.a Boa ir Sec. 2 of Article IV, defir eligibility; and By-Laws ectors; October, 1926 14, 15, 16, 17 and 18, providing for their nomination and election. 2. The election will take place during the month of November, 1926 on ballots which will be mailed from Headquarters in the first week of that month. The ballots for each Division will list the names of al! eligible candidates nominated for the po- sition by A.R.R.L. members residing in that Division. 3. Nominating petitions are hereby solicited. Ten or more A.R.R.L. members living in any Division have the privilege of nominating any member of the League in their Division as a candidate for Director. The following form for nomination is sug- gested: (Place and date) Executive Committee, A.R.R.L. Headquarters, Hartford, Conn. Gentlemen: We, the undersigned A.R.R.L. residing in the Division, hereby nominate of ,» as a candidate for Director from this Division for 1927-1928. (Signatures) The signers must be League members in good standing. The nominee must be a League member in good standing and must be without commercial radio connections. His complete name and address should be given. All such petitions must be filed at the headquarters office of the League in Hartford, Conn., by noon of the first day of November, 1926. There is no limit on the number of petitions that may be filed, but no member shall append his signature to more than one such petition. 4. Present Directors from these Di- visions are as follows: Central, Mr. Clyde E. Darr, Detroit; Hudson, Dr. Lawrence J. Dunn, Brooklyn; New England, Dr. Elliott A. White, Hanover, N. H.; Northwestern, Mr. Kar! W. Weingarten, Tacoma; Roanoke, Mr. W. Treadway Gravely, Danville, Va.; Rocky Mountain, Mr. Paul M. Segal, Den- i West Gulf, Mr Frank M. Corlett, Dal- as. 5. This is your opportunity to put the man of your choice in office as the repre- sentative of your Division. Members are urged to take the initiative and file nom- inating petitions immediately. For the Board of Directors: K. B. WARNER, Secretary. Hartford, Conn., 2 August, 1926. Strays *) c 8ABX uses ordinary glass test tubes as forms for R.F. chokes. A rubber stopper in the open end of the test tube serves as a mounting to hold the chokes on the panel or baseboard. members

Page 25

October, 1926 QsT Aurora and Its Effect Upon Radio Signals By W. M. Sutton* E have seen it repeated so many times that the Aurora Borealis has no effect whatever upon radio reception, that one is_ reluct- ant to make any statement to the contrary unless he is prepared to receive the brunt of many criticisms. And yet, we find everybody in general throughout Canada and the United States is complaining of the very poor radio reception during the past winter. Even the British transmitting amateurs were wondering what had become of the American and Canadian amateur transmitters the past winter, claiming they had much better contact last summer. Per- haps the following observations will help ex- plain the reason for such bad DX conditions. The writer is in a position to keep a very close check upon the Aurora, being able to tell whether it is present, night or day; as he is a repeater operator on a trans-con- tinental telegraph wire. Almost all other statements were made by observers, who could only use the spectacular display in the Northern sky as a sign for the Aurora. In the daytime or at night, when it is cloudy, such observations cannot be kept, and there- fore one could hardly call them conclusive. Instead of starting at the beginning of my observations, I will begin at the other end and go back, because it was in this way that I became more and more convinced that the Aurora has a decided and detrimental effect upon radio signals of certain fre- quencies. On the night of March 10th at 11:45 PM I was listening to stations in Toronto on the new Canadian wave of 52.5 meters. Sig- nals were exceptionally strong; 9AL, 9BJ, 38FC, 3VH (these are Canadian stations) all had an audibility of R-10, and u2XAC (Schenectady, N. Y.) on 52 meters was so strong that the signals blocked the detector tube. WIZ (RCA test station) was even stronger and all signals in the 40-meter band were very good. At 12:20 AM all Toronto stations had faded almost complete- ly out, and were just readable with concen- tration. 3VH was heard talking to 9AL, and asking him what had happened to the signals, apparently suspecting his receiver. At 12:45 AM, 2XAC with all their power was only R-4, and WIZ had dropped in strength to R-5. Only two or three ama- teur stations on the 40-meter band were coming in and those were just readable. The night was cléudy and the majority of ama- teurs would be at a loss as to the reason for such a sudden decrease in signal strength. * Canadian SNI, Victoria Hotel, Fort William Ontario, Canada. The Aurora came on very strong at 11:55 PM this night, and it took exactly 25 minutes before it deadened signals on these two bands. A permanent schedule has been kept with Toronto station 3FC since January, and several such occasions as described above have been observed. It appears that if the Aurora is very strong the 52 meter signais die off suddenly; but, if it is just moderately strong and continues, it takes an hour or more before signals are unreadable; and then again, if it is only weak, signals are weak too, and increase in strength as the Aurora lifts. This is on 52 meters. The skipped distance is not so noticeable on this wave as on the 40-meter band, and therefore the different intensities of Aurora affect the latter wave band somewhat differently. On January 25th and 26th there was not a signal heard here on either 52.5 meters or the 40-meter band, and it will be remem- bered it was at this time that the Aurora tied up all telegraph communication in Canada and the northern part of the United States. On January the 27th, sig- nals were coming in very weak on the 40- meter band, but I was unable to connect with anybody from this station. January 28th signals had returned to normal strength on both these bands. Most of the above refers to observations conducted on the new Canadian wave of meters, so a few remarks about its effect on the 40-meter band would not be out of place. It appears that, when the Aurora is either strong or weak in the day- time 40-meter signals will not come through at all, but at night, moderate Aurora has the effect of seemingly bringing the Heavi- side layer down, and stations at a moderate distance, (which should be skipping over- head at this time of the night) come in with exceptional audibility, and DX stations can- not be heard. Weak Aurora makes a slight change in the skipped distance as compared with a normal night, while a really strong Aurora deadens signals entire- ly on this band. In March 1923 the Canadian amateurs made their first attempt at a Trans-Con- tinental Relay which turned out very un- successfully due to what we called very poor weather conditions; but I can remember that a day or so before the tests the Aurora came on very strong and kept up for two or three days. The night it set in signals did not decrease in strength at all and it was not until the next night that any effect was noticed which would make one believe that Aurora has no effect on radio. This 52.5

Page 26

was on observed which a they have auroral ha the next signals ha fail to se« Perhat Aurora h the winte so frequent chance to therefore waves. O on the sh ly, becau nals com¢ winter of broadcast Aurora spring, winter m because Aurora winter ha peated and was very wonderful! tions ac: for Auro1 observat predicted would be « due to a dictions a Strong A meters up f immediat« 60 meters length th delay betw the disap; may be a broadcast much long Moderat« on the ski and prever higher the the broad ing in, but no mediun Slight A tance just and caus broadcast fairly stead push thr 1. Many and Aurora folk, Va. T large sun sp action of the QsT The same has been present broadcast band, most BCL’s saying that erful reception when the ainly seen in the sky and it has disappeared, the their volume, and they as0Ol. you will ask if the e 1 continually throughout as the not, but it has been ether has not had a ten up, so to speak, and reception on broadcast ther hand, we, amateurs, are Aurora lifts, our sig- he f not affected so bad- immediately. The was very good for both eur signals, because the during the fall and was noticed during the 4 }- 25 was not as good veral disturbances of the winter, and this , poor owing to the re- \ urora. Last fall there which accounts for the of our amateur sta- This is the worst year xperienced in six years | one of the scientists listurbances of Aurora 1 or the next 18 months maximum and his pre- ng to look like facts. lei] Conclusion ls signals from 35 ilthough the effect is only ls up to approximately goes up higher in wave- 7 4 is increased. The tart of the Aurora and r weakening of signals Th } hours in the upper e signals also take vack to normality. makes quite a change tance of 40-meter anal, DX. As we go ten meters gradually fade out. In dis tant signals are com- very pronounced, and tations come through. hanges the skipped dis- yn the 40-meter band, on medium distance but distant stations are fifty meter signals will are much weaker. In- may remember the three 23-24 when 300-meter spark were as » the North Atlantic Coast seen as far south as Nor- is usual—was preceded by magnetic storm”—i.e, erratic od. Tech October, 1926 termittent Aurora, coming for a few hours and lifting for a day, and then coming back again, will cause a continued blanket on broadcast signals, but the short waves will break through whenever the Aurora has lifted. A Straight Frequency Line Condenser MBODYING several very unusual features, the condenser shown in the illustration has recently been made available. It is of the straight frequency line type, but dif- fers from the majority of the condensers of this type in that its external dimen- sions are compar- able to those of the usual straight ca- pacity line type of condenser. The smallness is obtained through the use of exceedingly small plates—ex- ceedingly small when compared to most of the others—and the requisite capacity is secured by the use of a number of these plates. The supporting frame holding the rotor plates is a “U” shaped piece of heavy metal, the other end of the “U” carrying the insulation which is of high grade rub- ber. Both rotor and stator plates are of brass and are soldered in place. Pig-tail connections are provided to supplement the cone bearing contacts. The required mini- mum capacity is obtained by a permanently connected fixed condenser composed of two quarter moon shaped plates attached to rotor and stator portions of the circuit. The condenser is made in several “broadcast” capacities and is supplied for short wave use in several different maximum capacities. For short wave work the “minimum ca- pacity” shield is omitted. This very nice job is the product of the Samson Electric Co. of Canton, Mass. —J. M. C.

Page 27

October, 1926 i oo a & O = = 5 O > oO = o 5 o o te a re J bp = — a) > 3

“ALISOddO SI HAHLO AHL GNV ANO HLIM LUVLS isner : NOISUHANOO HLONS IAAVM-AONANDANA HOA GNV NOISHAANOD AONaNbANA- HLONA TAAVM 4O4 GASN AG NVO SHAHWON GWVS SZHL ‘Sa IQADOIIMM NI AONSNOTHA ONIGNOdSANNOD AHL SI LI ALISOddO ‘NI GALSHUALNI AHV NOA SUALEW NI HLONAI "SAVM @ZHL 40d SGNVLS HOIHM YSAENON AHL GNIA ‘“GENISV AI 24 NVO SV ZIdNWIS SV SI LUVHO AHL AO NOLLVHEdO AHL ‘ALISHAZAIND ZIVA LV DNIMSANISNG NOLLVOINOQ WHO) NI 3SUNOD V DNIGNELLV MON SI OHM GNV ‘MHOMLEN UNALVAV-AWUV AHL HLIM NOILLOANNOD NI WHOM SIH QUHL NAW “TUav OL NMONM ‘1T4AM ‘SAAIM WOL NIVIdVD OL 94 Nd Sl AHAH NMOHS LUVHOD AONDNOANA-HLONATISAVA GHL Ja ARR sa 3 2 ee E ; SF.

Page 28

26 Wi To be premier‘ his short the more True, t the “CQ’ apply pecially “copper | nightly Long | produced character were “ha To the ducing Time telegrap! pet ami every was of munity many village. The rY sitions f were mult the ma the trair flunky a1 the pum] do any a would helper privilege for his 1 Night curled uy had full in the da car re} Midn g snores a dog, sufi to his fi fused cli forth halt sender, warehou formed eventual! the offic: Invar “Ho w very slov * 1211 QSsT October, 1926 unds of radio, who seem have adopted the Hams”, really know rm stands for? lam” on a land line is the i even though realizing the poorer the operator, being called a “ham.” be applied to some of , but it seems a shame to ransmitting amateurs, es- tening to some of the iff that may be picked up ni and De Forest had that would transmit the aid of wires there goes the honor for pro- l-in-the-wool “ham.” ago, when to be a the railroad was the east one youngster in \ full-fledged operator mportance in his com- ttle sought after. by young ladies of the railroads created po- a A helper’s duties out the depot, carry m the post office, help | freight and baggage, warehouse, take care of at the water tank and r jobs that no one else all this was done the e telegraphy. This principal remuneration of labor the regular operator e and slept, the helpers of the idle wires, which used for messages and 1 silence except for the rator. Off in the distance from insomnia gives vent Then there begins a con- egraph sounder, giving racters. As the arm of the from a day’s labor in the up gradually, there is all, repeated many times, nswered by the helper at illed. onversation would start: y gir 1?”, spelled out haltingly. Then a tedious Milwaukee Wisconsin. exchange of the bits of gossip of interest to no one but the two future train dispatchers. After many months of this the helper would go into division headquarters, take his examination and (if acceptable), would be assigned to a regular position as tele- graph operator. Then he became, in the parlance of the commercial and railroad operators in the re- lay office, any number of dashed and blanked kinds of a “HAM!” Probably some really eld timer, long since grown old in the serv- ice, may be able to tell with certainty just how the term first originated. By the com- paratively late comers in the game, it is generally conceded that the term “Ham” was applied to the plodding student because his Morse characters sounded a great deal as if they were being formed by a huge ham instead of a hand, on the sending key. Another term used in land line telegraph is “Lifting the ‘Lid.’” “Lid” being another term applied to a young operator who “breaks” on every other word and whose sending is so full of “combinations” that even old timers are at a loss at times to decipher just what the “lid” or “ham” is trying to Say. As I listen to the hum and whine of the vari-toned CW’s, I am inclined to the belief that all the original “hams” with their “How is my gir!” have forsaken the land lines for radio with its “C U GN OM.” But even at that the term “ham” is a label to many of the senders on the ether. — Me Stray ss) Who says the amateurs are not running broadeasting stations? From WTIC, The Travelers Insurance Company’s station at Hartford, we find the following line- up of hams: Chief Engineer Randall 1ANQ; Chief Op. Taylor, 1IAT; Operator Mix 1TS; Op. Herriott, 1AOI; and Operator Tucker ex 1ADP. All of the operating force at WTIC who were old enough to enlist were in the Government Radio Service in some form or other during the World War. And this is just one broadcasting station from some five hundred. 2CXL, 2API and 1AOA have a new abbre- viation. “YX? Are you rushing the young ladies”? “YX R1 to R9—Yes I am rushing the young ladies at present (in proportion to the R’s)”—hi!

Page 29

October, 1926 OR organization details the reader is again referred to page 38 of our July issue. We lack space to print this information each month. If you have not the July issue please ask us for details but please enclose a self-addressed envelope. The July-August 5-Meter Tests The 5-meter test series have just run out as this is being written. This is the 30th of August and “copy” cannot be turned in after tomorrow so there is no point in waiting for reports. Requests for reports are being sent out to all who are known to have taken part in the tests and others are are hereby asked to give all details of their experiences. It is not anticipated that there will be a great deal to report for experience has shown that the weakest spot in the present tests lies in the very great uncertainty as to the operation and wavelength-range of the receiving equipment. At several sta- tions this has been checked up and after careful work a tuner has been built that gives very much better results. The Need for 5-Meter Wavemeters The biggest difficulty is in knowing that one is really listening on the same wave- length at which the other fellow is send ing. With one exception ALL of the suc- cessful transmissions have been made after a wavemeter was carried over the route and the receiving set calibrated with the same wavemeter used at the sending end. Some additional tests will be made after a batch of wavemeters have been made up and distributed. More of this later. Concerning 5-Meter Receivers The difficulty with most of the receivers seems to be in the absolute inability 01 their builders to appreciate how small a change of capacity will cause the tuning to whiz across the desired signal. The condensers used are almost always too large and the construction is almost always such as to permit vibration and hand capacity to spoil the action. Illustrative of the workable kind of re- ceivers is the one here shown which was made by Norvell Douglas of 9EHT at Law- rence, Kansas. The tuner uses the Arm- strong tuned-grid, tuned-plate circuit shown in Fig. 2B on page 35 of the July issue, except that it was found desirable to bypass the R. F. around the audio amplifier with the aid of a micadon condenser (shown be- tween the tuning condensers) and to make sure that the R. F. used the bypass by put- ting the Lorenz-coil in series with the audio QSsT Experimenters’ Section Report transformer primary as an R, F. choke. The distributed capacity of the audio trans- former will permit oscillation in the or- iginal circuit but the stability is better with the bypass and choke. Note that the choke is suspended clear of the base- board. This was found necessary but the vibration had to be damped by guying the coil with threads, one of which can be seen in the original photo, tho possibly not in the magazine reproduction. The tuning condensers are Hammarlund “vernier” con- densers driven by bakelite shafts to pre- vent hand capacity effects. Here is an important point. These bakelite shafts were originally 5 inches long but the “whip” made it impossible to find a signal. The trouble was located by testing on a local oscillator and shortening the shaft. This tuner is a big step in the right direction but the uncertainty as to the sending sta- tions compelled the use of an excessive wavelength range, i. e. from 49 to 7.0 meters. Does that sound small? Well it is ENORMOUS!! It covers 18,360 kilo- cycles or much more than can be found be- tween 20 meters and 20,000 meters. What chance would one have of tuning in even NKF with a tuner that rushed from 20 to 20,000 meters with a single turn of the tuning knob? How much less chance is there of finding a faint signal which is unsteady as most of our 5-meter stuff is? Even when one knows just where the signal is to tune in the most careful manipulation is neces- sary. The tuner with which further work will need to be done will have very much smaller condenser capacity. Budlong suggests a fixed plate with a short piece of curved wire to act as the movable plate, the wire being mounted on the tuning shaft. A New Record The real problem is to find out what 5-meter waves do in the ether, but that does not keep one from feeling elated over DX work when it happens. It seems certain now that 2AUZ has been heard on

Page 30

28 QSsT schedule 1ond, Indiana, also that several 3 t stations have been heard on Long | Check tests are being planned will be given later. If these are have three such. In view of t mely poor conditions un- der which occurred they hardly seem like Outlines All the outlines but two have been sent These two are being held for a few t will have been sent out before th ' ne reaches the members. The outli: tennas for poor locations appears t favorite as most of the men enr to regard theirs as a poor locat The Books for books on alternat- arrive each week, These ed by postcard. Natural- for opinion on such things but the inclined to feel kindly toward D. | |! J. P. Jackson’s freshly revised “Alt ng Currents and Alter- nating Cur fachinery” (McMillan) for $6.00; or t condensed, “Elements of Alternatir nts and Alternating Cur- rent Appa ” by J. L. Beaver, published by Longma ene and Co. at $4.00. Both of these | will be reviewed in QST. R. F. Chokes lable on the voltage-dis- ral wave of R. F. chokes circuits will be very so that it may be tied in Mr. E. G. Watts of Mi- . C. H. Starr of St. Cath- th of whom have been mentioned connection. Their work has devs e peculiar effects that are not w tood and might possibly be explair her work along the same line. Several ing curre! have been ly there i Any w tribution in oscill : ipe much ap} with work ami, Fla., erines, O1 Shor With amplifier a we begin t ove R. F. Amplifiers understanding of R. F the 200-600-meter region re hopeful of the future of R. F. in the sub-200 region. An outlin« en written on this sub- ject and it n thought wise to confine it mainly cussion of the methods used to d the goodness of the re- sults. T e will need revision and anything the subject will be help- ful—referet signs, experiments and theories. —R. S. K. October, 1926 A New Illuminated Dial HE dial shown in the photograph is the latest version of the excellent Na- tional variable ratio vernier dial. Illumination is provided in a very novel manner. The lamp (shown at the left) is es attached to the rear of the panel, and pro- jects through a hole in the panel into a “cupped out” place directly behind the trade mark on the front of the housing. Rays from the lamp project downward in the space between the dial and the housing and complete illumination of the dial results. The lamp is held in place by screws which are attached to two moulded-in inserted machines screws, set in the rear of the bakelite housing. An additional machine screw is moulded in the housing behind the control knob. These screws hold the dial very firmly in place against the panel. The lamp operates directly from the 6-volt A battery. At the right of the photograph is a coupling unit designed to accommodate the National Condenser for use with the variable ratio dial. ==J, M, C. Strays >) Every A.R.R.L. member should subscribe to the Radio Service Bulletin, the monthly news sheet published by the Government. It costs twenty-five cents a year and is secured from Superintendent of Documents, Govern- ment Printing Office, Washington, D.C. In addition to containing all the latest dope on Naval, Commercial, Army, Experimental Amateur and Special licenses and call letters the Bulletin announces forthcoming papers of the BuStan, has a complete tabu- lation of all radio papers and articles ap- pearing in all radio magazines, contains a list of Standard Frequency Stations and much other information of value to you all.

Page 31

October, 1926 Q Hints On the Design of Small Power Transformers By Allen H. Babcock* LL transformer design goes back to the fundamental formula for in- duced E.M.F.; 444fn® E ——_—_—__—— 100,000,000 where E = the volts for which the trans- former is to be designed _ f = frequency of the supply circuit in cycles per second ® — total flux n = turns of wire ® = area of core (measured at right angles to the direction of the flux) rece by the unit flux, i. e., the number of mag- netic lines per unit of area. This is denoted usually by B. By substitution and transposition we have 100,000,000 E n ————— 4.44 fBA Also Where A=cross sectional area of the core, measured at right angles to the direction of the flux as stated above. Usually we know E and f. B, we may assume for ordinary iron = 50,000 lines per square inch for all ordinary frequencies of power supply, say 25 to 60 cycles; and we have left two quantities, B and A, that vary inversely. Their product must be kept con- stant so that if we increase either one we must decrease the other in the same ratio. Expressed in other words, we may use a small iron core and have many turns of copper wire, or we may have a smaller num- ber of turns of wire with a larger core. For ordinary frequencies of power cir- cuits, say from 25 up to 60 cycles, it matters little, as far as the iron losses are concerned, whether the core is large or small; but when we come to the higher frequencies, 300 to 700 or 800 cycles, the situation is very different, for one of the iron losses varies as the square of the frequency and directly as the flux, while the other varies as the square of the flux and directly as the frequency. The iron losses are worth considering for two reasons; they have a lot to do with the cost of running the transformer, and they heat the core which in turn heats the copper windings in addition to the heat de- veloped by the ohmic resistance of the cop- per. It is easy to see, now, that transformer design is largely a matter of cut and try, not something for which a hard and fast formula can be developed. This is why the usual handbooks fail to be of much help to the beginner who has a transformer to de- sign. My plan is to assume a core for which the iron can be obtained in standard sizes, then with the quantities that are known and by assuming values for the unknowns somewhere within reason, substitute in the fundamental equation, solve for the com- plete transformer, and see how it comes out. Then juggle the various quantities around until (in the case of high frequencies) the iron losses are not too much larger than the copper losses, and when the volts of any coil divided by the turns of that coil come out about one or one and a quarter, I call it done. As a guide for a beginning: for low fre- quencies assume B = 50,000 and A about 10 sq. in.; for high frequencies assume B = 25,000 and A about 2 or 2% sq. in. and you will not be far out of the way for small transformers, say up to 1 K. W. and for maximum voltages up to 5 or 6 thousand. The hand-and textbooks will guide any one who wishes to compute his iron losses; the copper losses are simply the usual I°R. Factory engineers who design trans- formers every day have many useful short cuts learned by experience. College pro- fessors who teach these things will find my methods crude and lacking in refinement. Both should remember, if they feel disposed to criticise what I have written, that the ham who needs a small power trasformer is concerned with neither short cuts nor re- finements but must cut his coat according to his cloth. * Director Pacific Division A.R.R.L., 65 Market St., San Francisco, California.

Page 32

20 QST October, 1926 Neon Tubes and tne Radio Transmitter By C. A. Briggs* } glow tubes now sold for r the common kind sold for ark plugs, forms a handy idio transmitter. Fastened at on helix it glows whenever the circuit iting, whatever the wave- lengtl ee end of the tube must ex- tend i1 lirection readily found by trial rangement is particularly conver e experiments or adjust- ment [t is unnecessary to hunt aroul ivemeter or receiving set to lear? the transmitter or oscillat- ing di lating. The 1s mentioned in other ar- ticles, onvenient indicators for TIONS AS RECEIVED —? ~— Blank x wa f Acre Trafoil Blank Wire under brfoil TUBE AND WAYS OF IMPROVING wavem nd are coming into use for this purposs are sufficiently sensitive. Sharp s in be made, either by us- ing a ng just sufficient to oper- ate thé t resonance, or at closer coupling the point of maximum bril- liancy ised The tube will not be harms 1 flash-light bulb will be burned There is no inertia in the actior ibe; they will give a good flash t the eye when the dial is turned thru the point of resonance unde a flash-light bulb would fail utt how anything.’ The t iced across the wavemeter circuit, , in parallel with the con- denser wavemeter using a very small this will upset the calibra- tion a re the tube should be con- nected alibration. After that attem] needless overloads because ' * SCA ne Road, N. W., Washington, . @ i ble to burn them out. Tech. Ed. 2. How re not so prompt about going hee ‘tion voltage is much below the ignitior he resonance indication is not quite the sam is turned clockwise as when it « turned wise. This effect is minimized by Idose h. Ed the use of a new tube will call for re-cali- bration unless it is very much like the first one. It is generally necessary to make some changes in the flash tubes as pur- chased. To perfect the connection with the ends of the tube, see the diagram. The original connections may be used if they give good sensitivity but usually there is too much machinery about the tube and some of it must be taken off. Work carefully, remembering that it is very easy to tear off -~ Aeaga, wire sealed into the end of the tube. The work of adjusting and changing a transmitter is wonderfully expedited by two tubes, one connected to the helix to show when the circuit is oscillating, and the other across a wavemeter to indicate resonance These tubes can now be bought quite cheaply. They contain rarefied amounts of argon, helium or some sensitive gas. Some tubes are more sensitive than others. A.R.R.L. Information Service Rules Please help us by observing the following rules: 1. Keep a copy of your questions and diagrams and mention that you did so. 2. Number the questions and make a paragraph of each one. 3. Make diagrams on separate sheets and fasten them to the letter. 4.- Print your name and address (not merely your radio call) on your letter. Don’t depend on the return address on the en- velope as this is destroyed when the letter is opened. 5. Don’t ask for a comparison of the va- rious manufacturers’ products. 6. Before writing, search your files of QST—the answer probably is there. 7. Address all questions to Information Service, American Radio Relay League, Inc., 1711 Park Street, Hartford, Conn. 8. It is not essential to enclose an en- velope as long as you supply postage and PRINT CLEARLY your name and address on your letter.

Page 33

October, 1926 Northwest Radio Trade Association, (which is not in Seattle but in the Twin Cities) T the Jast show of the there was staged an _ interesting demonstration of radio picture transmission. The following account is quoted partly from letters of D. C. Wallace, meee | mee of the association (likewise of 9ZT) and pose from a report by James P. Barton and John K, Hilliard who operated the equipment. The Northwest Radio Trade Association requested that the apparatus and materials be assembled. The machines were pur- chased from Mr. C. Francis Jenkins of Washington, D. C., and after the show were given to the men who operated the equip- ment. Since the equipment purchased from the Jenkins Laboratories consisted only of the actual transmitting and receiving units, the auxiliary apparatus was gleaned from every conceivable source in the Twin Cities. Very fine sensitive relays were borrowed from the Telephone department of the Uni- versity of Minnesota. Various kinds of re- ceiving equipment were used. At one time a superhetrodyne was used so that the re- QsT A Radio Picture Demonstration ation show held in the St. Paul Auditorium and demonstrated during the entire week. “An illustrated lecture was given in the afternoon and evening on the equipment, explaining its operation. “The Argus Leader of Sioux Falls, South Dakota, engaged us to take the equipment to Sioux Falls to a radio show held there October 16 and 17. The apparatus was ar 2500 syst | + ssov “210 — rg = 4’ loop © owed 3 — = 4s 280 ppit Wor Cond = 1) FIG ase, 200u reke ~) y Sending Gynder packed up, sent down and worked more successfully than at the St. Paul Show, as we had a chance to work on it and remove some of the features which bothered us at St. Paul. “The two machines were placed THE APPARATUS SET UP AT THE NORTHWEST RADIO AUDITORIUM The other set was at the far end of the auditorium 600 feet From left to right the men in the picture are: Prof. C. M. R. E. Earle, Radio Inspector 9th District; R. K. Hilliard, operator at 9XI, also operator of the Jenkins transmitter; D. C. Wallace, President, Northwest Radio Trade Association; J. T. Barton, operator at 9XI and operator of the Jenkins receiver; H. R. Skifter, operator SYAS, former district superintendent Minnesota District No. 2, now manager WCAL; R. N. McCord, President, Twin City Radio The apparatus was worked under the call of 9ZT by special permission from SHOW IN THE ST. PAUL (MINNESOTA) away. Jansky, Jr., Director Dakota Division A.R.R.L.; Club and chief operator A.R.R.L. booth at show. Supervisor of Radio, E. A. Beane. lay operating the recorder could be placed in the plate circuit of the second detector. At another time the receiver shown in the diagram was used. Quoting from the report from Messrs. Barton and Hilliard: “The machines were taken to the Northwest Radio Trade Associ- close to each other so that the au- dience could easily see both ma- chines in operation at the same time. At first they were placed across the Auditorium and this was found impractical since the neople wanted to see both the transmitter and receiver in opera- tion at the same time. “The set-up consisted of two units; one a transmitter, and one a receiver. Each unit was construct- ed with a Jenkins Midget Model picture machine as the core. “The transmitter consisted of a Hartley oscillator using two UX- 210 power tubes fed by storage A and B Batteries. The Jenkins Conductive ink was used in all of the transmissions. (This is a graphite ink which is a fair con- ductor. Pictures are drawn, or writ- ing done on ordinary paper with this ink. The paper is then wrapped around the transmitting cylinder so that the picture will revolve under the two contacts of the send- ing relay shown in figure one. —Tech. Ed.) When a line passes under the contact the ink closes the operat- ing cireuit of the high speed telegraph re- lay which cuts a 250-uufd. condenser across part of the transmitting inductance, there- by compensating the wave. (See figure 1) “The original wavelength was 185 meters but we found at demonstrations and in tests

Page 34

that quency. meters working compen tically closes t waveier theref lag, wi “A S a sing used a the dea booths for plat “The tector ar a UX-2 transfor 2/1 int using a a stra cuited accom] values ous va obtained curves “Tn t was pla ilar to ti of the | bring t) presse variat mils fine sha} ressed ines. “In note of This met the Al being t ing the the grea at that radiating and thre operating amplificat for detet quency 1 riterion. ipacity would effect the fre- shifted the wavelength to 580 he back wave and 565 as the The purpose for using a wave was that there is prac- between the time the relay ircuit and the shift of the = ase ery FiG2 Z [The action is electronic and 1g in comparison with a relay found to be the only real one. units were only 20 feet apart, i-foot loop was used for the m. Storage batteries were ild get plenty of them from o were displaying at the erwise we used an M. G. set g unit consisted of a detector lio stages using 201-A’s for de- t step, UX-112 for second, and the last step. The coupling were G. R. 6/1, although a t two stages would be better, r plate voltage. The circuit is ‘Weagant X” with a.short-cir- coil to broaden tuning. The circuit diagrams give all the .we, apparatus, etc. The vari- f plate and bias voltage were the static characteristic tubes. circuit of the last audio tube lliammeter and a relay sim- n the transmitter. The grid tube was biased sufficiently to e current to zero with no im- on the grid. The normal plate current was 0 to 50 would operate the relay in e relay closed a local circuit stylus recorder which im- the carbon paper, drawing plifier we found that a beat 1500 cycles gave the greatest or change in plate current. by the way, is a very good one ng the amplification curve of former with regards to fre- Ip deflection in the last tube The reason for bias- ibe so that Ip was 0 was that hange in Ip could be obtained on the curve with the least QST lat Bley October, 1926 change in grid potential. This seems to be characteristic of power tubes, much more so than in lower Ep tubes. “It was also found absolutely necessary to place a one ufd. condenser across the terminals of the receiving relay to by-pass the beat note frequency which, without the condenser would cause the relay to clutter and reproduce as a miniature loud speaker. “We have had very little time to work on these machines but we have a large number of ideas for improvement on the two units. We shall continue to work with these units from time to time with a view to a permanent set-up.” Quoting from Wallace’s letter; “You may also be interested in the Twin City Radio Club booth at the N.W.R. T.A. Show. Over seven hundred messages were started by Twin City stations. A small transmitter was right at the booth and many of the messages were cleared from the booth itself with no interference to radio reception in the room. A wavelength of 40 meters with 1000 volts of Eveready “B” battery on a pair of UX-210 tubes was used. —R. S. K. BeStrays *) At last we’ve discovered who started this business of “moving Headquarters west”. It must have been the Chicago Tribune for that eminent daily is willing to tackle even the moving of our national capital to the middle west. The following editorial ap- peared in their columns this past summer: WHY WASHINGTON? The President and Mrs. Coolidge have gone into the Adirondacks and for the summer the President's office and home will be in a camp on Lake Osgood. That proves that Washington is not the place for the national capital. Part of the year it is too hot for work and although it might be a good thing for the legislative branch of government to have it so, the advantage is lost because Congress skips out about the time the pavements begin to steam. Hamilton may have been justified in the deal he made with Virginia, trading the Potomac capital site for support for his assumption of state debts, but al! the equities of that bargain have been dissolved. Virginia spent four years worrying the government in that location and before that the British found it convenient of access. There are any number of fine capital sites in the interior of the country far enough from the Hudson river to be protected from both alien and eastern in- fluence. Our preference is an! has been the east coast of Lake Michigan at or in the neighborhood of Grand Haven. ‘ ; It looks like something can always be said against any location. It gets pretty hot in Hartford in summer, too, and we've thot longingly of headquarters in Etah, with the Bowdoin distributing QST. But each winter we incline to the fancy that Havana would be a pretty nice place. Why can’t A.R.R.L. have its headquarters on wheels?

Page 35

October, 1926

HE fourteenth U. S. radio regulation reads: “All stations shall use the min- imum amount of energy necessary to carry out any communication desired.” The same words, (or words to that effect) constitute regulation five printed on ama- teur station licenses, yet-—how many of us abide by this law? How often I hear hams in my city pounding away with an input of fifty and a hundred watts merely to chew the rag with another station which is only a few blocks distant. This kind of opera- tion invites complaints and creates a great deal of QRM. We all agree that the ama- teur should obey regulation fourteen, but when we suggest reducing power, the aver- age amateur will argue that the only prac- tical methods are: the operation of separate transmitters (which involves expense); the use of high-power and low-power tubes in the same set (which requires separate plate supplies) and the taking-out and putting-in of tubes in the sam? circuit (which involves time). The average transmitting amateur would rather have some arrangement by which the high-power and low-power tubes may be included in the wiring of the same transmitter with only one control with which to change from one power to another. After much experimentation, I ran across a suitable system and am describing it in

, ne , c © ™ $0 Watt Socket (ff N . \$ \ } 5 ond | \ SY spe Greece ‘ ee j 4 Pilate —_ &FC % A » a Jo postive Y : , S$ Ls 7 Swatls O} krecostat saul —~ Ts | a

To filament lnghting transformer of battery

7 tlament battery or center-tap of til- trans REDUCING POWER FOR LOCAL WORK [7¢ Prcy"l 13 shawn for shunt this article. The only control is a S.P.D.T. switch. The change is accomplished by shifting the filament current from one tube to another. The smaller socket accommo- dates a five-watter and the larger socket a fifty-watter. A 5,000- to 10,000-ohm resis- tor is connected between the plates of. the two tubes for the purpose of reducing the 1,000-volt plate supply to five hundred volts *$LF, 427 Franklin St., N. W., Washington, D. C

QsT Reducing Power for Local Work By Rufus P. Turner* for the low-power tube. It may be neces- sary to use several resistors in parallel so that the required current may pass. The writer used two RCA 5,000-ohm transmit- ting grid leaks. Standard Frequency Schedules HE O.W.L.S. Committee is glad to an- nounce the resumption of its Standard Frequency service, starting with 1XM on October 15th. The schedules from 1XM are by courtesy of the Com- munications Division of the Massachusetts Institute of Technology and the M.I.T. Radio Society. Sunday afternoon sched- ules in the 15 megacycle (20-meter) band have been added in answer to a large num- ber of requests. We hope, by the middle of winter, to have three O.W.L.S.-S.F., one on each coast and one in the Mississippi valley. In answer to requests from a number of foreign users, tentative sched- ules for a month in advance are also given. 1 Megacycle=1000 Kilocycles=1,000,000 cycles. The schedules here given are approved by the Bureau ef Standards and the A.R.R.L. O.W.L.S. Committee as well as by the co-operating stations. The frequency values are based upon the standards of the Bureau of Standards, and have also been checked by the Com- munications Laboratory of the Massachusetts Institute of Technology. Sunday Afternoon Schedules (PM, Eastern Friday Evening Schedules Standard Time) (PM, Eastern Stand. Time) (Frequencies in (Frequencies in Megacycles) Megacycles) (Approx. wavelength in (Approx. wave- parentheses) length in paren- theses) Time Schedule Schedule Time Schedule No. A No. B No. C 8:30 3.50 (85.7) 6.50 (46.1) 3:00 10.0 (30.0) 8:42 3.60 (83.3) 6.75 (44.4) 3:12 12.0 (25.0) 8:54 3.75 (80.0) 7.00 (42.8) 3:24 14.0 (21.4) 9:06 3.90 (76.9) 7.25 (41.3) 3:36 14.5 (20.7) 9:18 4.00 (75.0) 7.50 (40.0) 3:48 15.0 (20.0) 9:30 5.70 (52.6) 7.75 (38.7) 4:00 15.5 (19.3) 9:42 6.50 (46.1) 8.00 (37.5) 4:12 16.0 (18.7) 9:54 7.00 (42.8) 8.25 (36.3) 4:24 18.0 (16.7) 10:06 7.50 (40.0) 8.50 (35.3) 4:36 20.0 (15.0) 10:18 8.00 (37.5) 8.75 (34.3) 10:30 8.50 (35.3) 9.00 (33.3) Dates October 15, No. A, 1XM November 7, No. C, 1XM October 29, No. B, 1XM November 12, No. A, 1XM November 26, No. B, 1XM Division of time of each transmission 3 minutes— QST QST QST u 1XM 1XM 1XM 3 minutes—5 second dashes broken by “1XM” every half minute 1 minute—announcement of frequency in megacycles (8.75 megacycles is sent as “8r75MC"’) 1 minute cycles -announcement of next frequency in mega-

Page 36

J ITH so many good receivers avail- j n knock-down form, no one | have any hesitancy in con- ng a short wave receiver. I being cheaper in the self- QsT Short Wave Tuner Kits October, 1926 York City. The circuit used is the fixed- tune primary, condenser-tuned secondary and throttle condenser regeneration control. The condensers are the double-spaced Ham- marlund. The coils are also made from Hammarlund inductances, being of the 3- inch diameter, No. 16 wire wound ten turns to the inch. The coils are mounted on bake- lite strips fitted with General Radio plugs, which in turn fit a corresponding terminal strip equipped with G-R jacks. Sufficient coils are provided to cover all of the ham bands. One antenna coil is used through- out the complete range of the receiver. This is also of the Hammarlund type, mounted on a swinging arm so that the coupling can be readily adjusted. The tuner incorporates a detector and one stage of Thordarson of General Radio audio fre- quency amplification. The sockets are of the spring cushioned type to eliminate microphonic disturbances. An Amperite filament control is used on the amplifier tube, a variable resistance being used with the detector. The dials are the well known Marco type with a 11-to-1 vernier ratio. The receiver is supplied in knock-down form with everything required. VIEW OF THE GROSS RECEIVER ‘ D AND FRONT VIEW OF THE ROSS RECEIVER ere is a lot of satisfaction sembling and wiring your f it is your first short wave tur igh you have done nothing m ely follow blue printed dia- PARTS OF THE REL TUNER g ing of having accomplished 8 happy one. [r | appears a photo of the asst r, parts of which are avail- Gross & Company of New FIG. 3. THE REL TUNER ASSEMBLED The REL short wave kit, shown in Figs. 2 and 3, is supplied by the Radio Engineer- ing Laboratories, also of New York City. In this receiver Lorenz type coils are used in primary, secondary and tickler. The coils are wound to a diameter of 2% inches, the wire being triple covered annunciator type. Coils to cover all of the amateur bands are included. As the primary- secondary coupling is fixed, several sepa- rate primary coils are provided so that dead spots in the antenna circuit (due to resonance of harmonic resonance) can be avoided. Everything that is not mounted

Page 37

October, 1926 on the panel is attached to the long narrow bakelite strip shown in Fig. 2. The body of the sockets is made of the strip itself. The tuner is supplied with a beautifully en- graved bakelite panel, the engraving tak- ing care of secondary and regenerator con- denser scales and rheostat positions. A single rheostat controls both amplifier and detector tubes, the amplifier being a single stage one. The condensers are of the REL type, being made with very large plates having an unusually large spacing between a FIG. 4 THE SILVER MARSHALL PARTS them. The set is supplied with an unshield- ed panel and rubber friction verniers mounted on extension projecting well away from the panel. . The receiver comes to you in the form shown in Fig. 2, and when completed looks (externally) like the photo in Fig. 3. It is supplied complete with cabinet, panel and all parts and wir- ing, spaghetti and screws. Although not a complete kit in that tube sockets, rheostat, panel cabinet and so on are not supplied with the parts, the new Sil- ver-Marshall set of short wave parts shown in Fig. 4 deserves mention. The coils are of their latest type, being wound on moulded bakelite forms, the forms having ribs in which notches are moulded. The wire in the inductances is No. 26 enamel, being spaced by a distance about equal to that of the wire itself. The coils are plug-in, fitting the ring socket which carries all of the terminals. The circuit intended for use with the parts is a con- denser-tuned secondary one, the regenera- tion being controlled by a throttle con- denser. A small low maximum capacity variable condenser (shown in the center of the photograph) is used as the series antenna condenser. in place of the an- tenna coil. The main condensers have a maximum capacity of 140 wufd. and with the coils supplied, cover all of the ama- teur bands. —J. M. C. J Siren pig gu = QsT Plug-In Chokes F your transmitter is to cover a very wide band of waves it will be necessary to use some form of interchangeable radio fre- quency choke coils. Home-made plug-in chokes have been previously described in ————— QST. Commercially manufactured chokes are now available. The chokes shown in the illustration are made by the Allen D. Card- well Mfg. Corp’n. Three types are avail- able. One for 20, 40 and 80 meters, one for 150 meters to 200 meters and the other a “universal” for receiving sets. The coils are wound on hard rubber tubing and are supplied with plugs and jacks. $@Strays $5 On page 36 of the September issue, in the article “Radiotron Model UX-210”, we made setting the formulae. The second and third paragraphs on that page should read as follows: an error in The straight line finally obtained is the optimum load characteristic and its slope is the reciprocal of the foad resistance. This line gives the maximum and minimum plate voltage and plate current and the out- put power is calculated from the following equations: P=1/8 (E —E . ) (@ -—I_ ) max min max min The load resistance is, of course, E —E . max min em Re max min and knowing these two quantities the A.C. plate current can easily be determined or it can be directly calculated from the plate current swing as shown on the curves. To clarify the use of this method an ex- ample is given below for the 350 volt case. Given Eb=—350 volts I=1.5 m.a.

Page 38

A Portable By Frank lays portable sets were in n the summertime; nobody out in a field with a por- during the winter. How- there are some of us who yme into the habit of hiber-

QsT

October, 1926 Transceiver A. Gunther* The box is ply-wood, draped with leather and provided with a stout carrying handle. The inside dimensions are: length 18%”; height 16”; depth 10%”. Next the general layout was made and it was decided to use a wooden frame carrying three panels of

nat nada in the summer and Flor- 3/16” bakelite. The frame is of %”x da er: therefore have need fora 1%” whitewood and is described well trar ver. Looking further enough by the drawings. -. The three panels are as fol- nd e—\0™" lows:— (see photo) Sr ° arc — | te ttt -€-— Meter panel (top) 18%” x 4%”, 6 oo @sE3 Cid mg "j ; = =, RS Inductance shelf (carrying jacks ~S 1 7. : ht — >) Sot for plug-in coils) 17%” x 8”. I 3° ts] ae “= Control panel (lower) 18%” x £, 66 | TT x 4 : 6% wy! —< J iL a Q-- The three panels are rubbed ale Cioesl down with oil and No. 000 steel 4 4 4 wool. The sub panel or shelf is 2908 “a = “ss =~ notched (1%” x 14”) to permit the OMPLETE CIRCUIT DIAGRAM vertical post of the wooden frame PS & the REL plugin receiving coils. to pass thru. The apparatus on Li & 1 the REL (small size) transmitting inductances. the shelf is as follows: at the rear seed 0 rere wie ramet end three Benjamin UX type sockets ca. C4 condenser and grid condenser, 2000 jyyufds. or are mounted with their centers the The blocking condenser should have been tested spaced 3%” and the middle one rt be a ee almost exactly half way on the rh cod _ , panel and 24” from the rear edge. R2 & | 0-ohm rheostats. If receiving filaments are These holes are large enough to oper pories only = — rheostat will be needed pass the body of the socket with G GA mend Gas one shown, this is done for the clearance as the base of the socket sake iding a confusing cross-line in the diagram. is below the shelf. The instruc- Act is but one “G” post—and that does not go tions for mounting in this way =, om 4 os —~ eoeee will be found in the socket carton. we @ a See At the extreme right of the shelf M.A is. D.C. Jewell six %” holes are drilled to re- A @1 o R.F. Jewell ceive the jacks which hold the Ri is sal resistor or “multiplier” of the 0-500 volt- REL receiving coils, primary, sec- me « the absorption to which a microphone may Pill i ' ae ~~ % encsch teenemiaten aout be ened. ondary and tickler. Any coil can be exchanged independently of the shea comes home happy and _ others and with a set of 7 the entire amateur brok hould be able to continue range above 12 meters can be covered. a yh me—for the owner will The primary transmitting inductance is not | y another for a while. mounted in a fixed position at the left end Thi e conditions, besides com- of the shelf with the plate lead running to ing In the person that is unable to the right-hand end since that end is nearest get av ousiness for a vacation, for the antenna coil. In front of the primary, it fits x and the like very nicely. 4 holes are drilled to permit flexible leads 3 ling, please get accustomed to go from the helix clips down into the to the his set works (the combin- _ set. The secondary or antenna coil is ation) well as if they had been mounted by screwing a lengthwise bakelite built | amateur station, also that strip of 3/16” bakelite to the secondary in- the place when used as such. ductance. This strip is %” wide and thru ta uld be built first and then it pass a pair of 6-32 machine screws which the cal ild be put around them. For _ in turn go thru a slot in the shelf and are the sa trariness this one was made each equipped with a spring washer and the the cabinet and then the soldered-on nut to provide a little friction. abinet is a lady’s hat box. gineering Laboratories, Thames

The panel slot in this case was 3/16” wide and 7%” long, tho the length obviously depends on the adjustment that is wanted

Page 39

October, 1926 and also on the spacing of the two screws. The apparatus on the meter panel is self- evident, but may be listed as follows from right to left, 0-10 D.C, filament voltmeter, ground post, 0-500 D.C. plate voltmeter, 4- pole double-throw Federal anti-capacity switch, 0-1 antenna R.F. meter, antenna post, 0-100 D. C, plate milliammeter. | 4 “ar of — ~ 62 - oy ae SIDE FRONT - £114 while wood frame y 2 7 b °F 4 THE CONSTRUCTIONAL DETAILS OF THE WOODEN FRAME The apparatus on the lower, or control panel, is, right to left, phone jack, 150-uufd. receiver regeneration ‘control condenser, re- ceiving filament rheostat, 100-uyufd. re- ceiver tuning condenser, transmitter fila- ment rheostat, 500-uufd. transmitter tuninz condenser and finally a key jack. The ex- tra jack above the transmitter filament rheostat is connected to an absorbtion loop Pei | WS CX: I i De . on EL | * Sth itt REAR VIEW OF SET REMOVED FROM CASE of one or two turns of rubber-covered wire wound around the grid end of the primary transmitting inductance. A microphone can be plugged into this jack—if you wish to degrade yourself in that fashion. The R.F. chokes have wooden plugs driven into one end and are mounted with‘a screw driven thru the shelf. All three chokes are alike. The two fixed blocking condensers should be able to stand about 1000 volts. Across the grid condenser a graphite leak QsT 37 was used, but anything will serve that does not overheat—and stays in adjustment. It is important to have the receiving grid condenser of small capacity as a large con- denser makes it harder to get good tube operation at the short waves. In this set, the condenser has a capacity of 100 pufds. and the leak has a resistance of 7-10 ohms. All filaments are worked from the same 7.5-volt batteries, the receiving tube fila- ments (3-volt UX199 tubes) being pro- tected by a semi-fixed 30-ohm rheostat in series with a regular 12-ohm rheostat.’ The extra rheostat is mounted in the rear of the set, where the 500-voltmeter’s “multi- plier” resistance is also located. Six flexible rubber-covered leads are taped together and run to the “power-house” FRONT VIEW OF SET IN CASE box containing the 7.5-volt A battery as well as the 90-and 450-volt B batteries for the receiver and transmitter respectively. Since the set will almost certainly be for automobile use it is worth while to think of operating the filaments from the 6-volt car battery’ and possibly to supply the transmitter plate from a 6/350-volt dy- namotor. The complete job is still to be wired up. Flexible rubber-covered wire is best as it does not break or short-circuit. The set is now ready to put into its case and as both sending and receiving circuits are familiar and time-tried everything should operate well at once, provided the antenna is of proper length. A single-wire 31-foot antenna and a similar counterpoise can be operated at their fundamental of about 40 meters or the primary may be tuned to 20 meters and the antenna system operated at its second harmonic. The lower does not exceed 350 the i—If the plate voltage output of a UX210 is almost as good with 6 volts on the filament. The automobile battery provides this very nicely. The receiving filaments are safer and the proper bias for the audio Tech. Ed. when run in series stage is then available. (Conclude d on Page 50)

Page 40

QsST Amateur Radio Stations” October, 1926 suDpr 3AAI, Alexander, Virginia t layout is the low power lled station of John S. Alexandria, Virginia. Were ndicating meters on the mpossible to pick out the transmitter, from a graph. ator is in the center. The tor (as well as the panels s) is of lacquered brass. s a UX210 controlled by for either 76.4 meters .8 meters (7015 kes). Plate rystal oscillator and the mes from “S” tubes and former, the normal plate The supply is filtered by e4made filter system under table. A 45-volt C battery 1 circuit of the crystal tube per grid bias for the os- he left houses two UX210’s ited apparatus, comprising er and frequency doubler. is 550. normally, supplied wer unit as the oscillator. tage on the power am- plifier varies with the frequency in use at any particular moment. With two crystals and the frequency doubler, 3AAI can QSY to four different wavelengths, viz, approxi- mately 21, 38, 42 and 76 meters( 14280, 7890, 7139 and 3945 kes. respectively). Filaments of all tubes are supplied with current from a home-made filament trans- former. The plate transformer is also home- made. The antenna at 3AAI is a 3-wire flat-top 40 feet long and 65 feet high. The counter- poise is a single wire 40 feet long and 25 feet high. The station is located right in the midst of the business section, which con- siderably hampers Arnold’s style. The counterpoise is strung right between two brick buildings! The receiver is mounted on a separate table across the room from the transmitter, when not being photographed. The trans- mitter is “remotely controlled”! The re- ceiver consists of a set of Aero Products plug-in coils and one stage of audio fre- quency amplification, mounted in a cabinet similar to the transmitting cabinets. A separate one-wire receiving antenna allows for break-in operation on all

Page 41

October, 1926 wavelengths except that of the transmitter. Notwithstanding the comparatively low power, 3AAI works 6’s almost anytime at night, has worked g2SZ, m9A and other foreigners. For the past sixteen months QST 39 Arnold has not missed over three or four nights at the set. Most of the work is done on the 38-meter wave. Truly an efficient little station arranged for maximum effi- ciency in traffic handling. 5AKN, Dallas, Texas 2 vw ae) , , _ (7, a fe be - STATION shown in the illustra- tion also goes under the name of 5XBH, but is probably best known un- der the 5AKN call. It was constructed by J. H. Robinson of 522 Cumberland Street, who is also owner and operator. The transmitter changes circuits pretty often, as do lots of our amateur layouts de- signed mostly for experimental work. This particular transmitter lends itself to cir- cuit changes particularly readily because the various parts of the circuit can be “gotten at” with ease. The layout shown uses a UX210 tube as a master oscillator and a lone 50-watter as a power amplifier. Plate supply comes from a 1,500-volt Esco motor generator hid under the floor under the transmitter. A resis- tance in the positive lead from the M. G. furnishes the necessary drop for operating the UX210 power amplifier. To the right are the wavemeters. Three are provided. One is a small interchange- able coil meter used for “clicking” the re- ceiver to measure the wavelength of the received signal. Behind the small meter is another one which uses a neon tube reson- ance indicator. This meter is used primar- ily for tuning the transmitter somewhere within the 80-meter band. The larger meter uses a thermocouple and galvano- meter for resonance indication. It is also equipped with removable coils. 5AKN is an O. W. L. S. hence the variety of meters. To the extreme right, between the re- ceiver and desk-stand telephone is the control box. Switches are provided for per- forming a number of operations on the transmitter and receiver. A switch at the top of the panel grounds the separate receiving antenna while transmitting. Below this are small double-pole double-throw switches which cut-on and-off the receiving tube, A and B supplies, the filament of the trans- mitting tube and the 110-volt line to the motor-generator. All switching controls are concentrated on this small panel where everything can be controlled easily without having to scramble all over the operating table to find a lost switch! Although 5AKN’s stationery does not ad- mit it, we are inclined to Believe that he works at the local Telephone Company. Note the moulded telephone receiver shells used to support the transmitting inductances, and the one on the wall right above the transmitter. hi!

Page 42

Q H ither-and-son station, owned bt ited by Warren S. and M. Campbell. The station is ton Street, and has been eration ever since its erec- the World War. The start wa » 202 and Quaker Oats Ind a direct coupled Hartley i50 volts, A.C. After going numerous periods of iocat S nements the station takes he { n the photograph. I s a 50-watt, low impedance tubs ined-grid tuned-plate circuit desct March QST in the 6HM Stat tion. After numerous at- tempt ect a slight waver in an note (due to varia- ther D.C, ns tage) this circuit was found rouble, thanks to the com- nlete nished by Colonel Foster. Tl ipply is 1200 volts at the tubs , supplied by a 750 watt ner and a 56 jar rectifier wit! 1luminum strips in 20 Mule Teal lution. The filter consists hoke and a 15-ufd. con- luctances are of % inch coppe1 the turns being spaced a h. The tuning condensers onals that have been cut and double spaced. The th plus and minus high untuned and consist of 30 D.S.C. magnet wire on The center-tap arrangement Xmas tree lamps in series terminals. Each lamp s shu 6,000-ufd. Micadon receiv- acro ent ing All “hot” parts of the cir- cuit 1 by General Radio stand- off in Sir ency of the circuit depends on tl tion of two coils spaced ipart, the inductances were the baseboard so above ST LAAE, Pittsfield, Mass. October, 1926 that their fields would clear the rest of the apparatus. The coils are fastened to the brass pedestals with unions such as are used in automobile gas lines. This gives extreme rigidity required for high fre- quency operation and makes quick wave- band changes possible. Nine turns are used in both plate and grid coils for the 7500 KC band and three turns are used for the 15,000 KC band. The antenna is a single No. 12 enameled wire in an inverted “L’”. The flat-top is 45 feet long and 65 feet high and the lead- in is 45 feet long to the set which is lo- cated on the second floor. The counter- poise is also a single No. 12 wire 40 feet long and 8 feet above the ground. 1AAE is in both the Army and Navy nets. The station turns in a good bag of traffic each month and the DX includes about everything workable on the face of the globe. The greatest pride, however, is taken in that crystal-like D.C. note which shows what can be accomplished with ordinary apparatus when a little horse- sense is combined with theory. ; Strays SY Two very excellent booklets have just been prepared on audio frequency amplifi- cation. One, called “Audio Amplification” published by the Samson Electric Company of Canton, Mass., contains a world of theo- retical and practical data on the problems entering into the design of the audio fre- quency amplifying system, suggests many practical applications of a number of theo- retical considerations, discussing fully the relative merits of the various types of am- plification systems as well as “B” battery eliminators and reproducers. The other booklet is published by Silver-Marshall, Inc. of Chicago. This booklet is called “The Secret of Quality”. The booklet starts off by stating the number of problems which enter into the audio frequency amplification system and progressively takes the reader through the theoretical solutions and the practical application of these theories. In this booklet, also, the various types of audio frequency systems are explained, their merits compared and the result of a tremen- dous amount of laboratory work on the audio frequency amplification is brought to light. “A”, “B” and “C” eliminators are discussed, and full descriptions of several popular broadcast receivers are given. The broadcast fan cannot well get along without both booklets which cost twenty-five and ten cents each, respectively.

Page 43

October, 1926 Q u-1APL, 92 Lewell Street, Springfield, Mass. a-2bb a-2ca a-2ds a-2kg a-2lm a-2rj a-2tm a-2tn a-2yi a-3bd a-3kb a-3ls a-bah a-5bg a-bma a-7hl b-b2 b-4yz -5go c-5hp c-Sar c-8wm f-8ma f-8zo f-8yor g-2cc g-2qb g-5bah g-5bma g-5nn g-6kk i-llas p-3co p-3¢b q-2mk v-dg2 z-2ae z-2ac z-4am z-4ak bz-lab bz-lac bz-lan oz-lar bz-lia bz-5ab. layg, James Wood, 106 Pine Grove Avenue, f-8bf f-Ses f-8fn f-Sgi f-Six f-8kf f-8zo f-8rbp f-Syor ocng ocnt p-lae p-lak p-2nh p-3g¢b n-pb3 n-stb n-owe (tts zero we) i-las i-lbk i-lfp i-lgw i-lno i-lns z-2xa -4ak z-4ac z-4am z-4wr ch-2ah ch-2ld ch-3ij m-9a m-in l-ljw b-j2 b-o2 b-zl b-4qq b-4yz g-2cc g-2ke g-2qb g-2sz g-2xy g-5Sby eg-5dh g-5lb g-5ls g-6bd g-Gyd gi-2it bz-lak bz-law bz-lbd zb-lib bz-lbi bz-2aa bz-2ab bz-2af bz-2aj bz-baa bz-5ab bz-9qa z-2bk w-2cs a-2tm a-3bd a-3cj z-3ef a-3kb earlo ear24 rxy keih ntt lena, 94 Allston Street, Cambridge, Mass. a-7Tes bz-5aa bz-law ch-2ah f-Sces f-8kf f-8fcer f-8yor f-8jn f-ocng f-octn f-fw g-2it g-2lz g-2sr g-2qb g-2xy r-2vq g-5dh g-5ms g-6og g-6yd gh-lfg i-lco k-K7 p-lae p-Sor q-2mk n-pb3 n-pb4 y-lcg y-2ak agb age g-33 wnp nidk ntt kgbb hu-6bdl. u-3lw, H. A. Robinson, Silver Lake Farm, Willow Grove, Penna. 6axw 6cii 6epf 6cua 6xk a-2cg a-2cs a-2dj a-2rj a-2tm a-2yi a-3bd a-3bh a-3en a-3ls a-3wm a-3xo a-4cm a-5be a-5lo *a-6am* a-7cs a-7Tew a-7dx a-7hl a-vis b-ft bz-2aj ch-2ar ch-2]ld g-2sz hu-6bd] hu-fxl i-lco pl-ae y-2ak z-lao z-2ac z-2bx z-2gc »2xa z-3ai z-3am z-4ac z-4am t-dav f-9c ido pjc nba niss not npe npu s7q val voq vyg wnp wxf xda. ibt. J. Gray McAllister, Jr.. Box 118, Montreal, N. C. 6adv 6agm 6ahn 6akm 6anc 6ann 6anp 6bav 6bbn 6beh 6bjl 6bjv 6bat 6bxc 6bxd 6bxi 6bxr 6bya 6bhyz 6bzc 6bzm 6edv 6cej 6chl 6ceng 6cqa 6ceuw Gewese Geww 6dar 6deq 6ddo 6fz Ghv 6ih Git 6jn 6rv 6ms 6mu 6no 6np 6pw iqi 6uv 6va Tav Tbh 7em Tit Tnh Tox Tpu 7tk 7vh T7vm Twe Twh hu-Gaxw hu-6dea hu-6xk 6zac a-2am a-2br a-2cg a-21j a-2no a-2rg a-2so0 a-2tm a-3bna a-3de a-3en a-3kn a-4bo a-4cem a-4dw a-5Sbe a-5bx a-5da a-5dx a-51f a-bma a-5nb a-5bwh a-5zf a-6gb a-6kt a-6kx a-7dx a-7la b-4zz bz-5ab c-4dw c-4ek ch-2aw g-5dh g-6td m-cyy m-jh m-lg y-lcg z-lao z-lax z-2ae z-2bd z-2xa z-Sar z-3bh z-3mc z-4as z-4av vce6 kfhw Ipl ocdj ri voq wnp wve. Sani, Frank Watts, 1716 Park Avenue, Shreveport, La. 2it 4le 4az 4aad 4aah 4hx 4iz 4iq 4io Mic div Ajr 4fl 4fy 4mv 4jj 6eew Gayj Tit Taki Saty Sbcea 8ckp Sded 8kf 9aod 9aji 9ajw 9auj 9aeb 9Yavb Yara Yadr Yaox 9bdt 9bl 9bna 9bkj 9bug Yccs Bcf Ycev Yck 9dfg Ydrs Yday 9dqj 9dwn 9ek 9ekf Sep 9ft 9kd 9kau 9pu Ypz Yzt Ynr. 5DF, A. D. Mayo, Auburn, Alabama ladw laqi lavl ilbeq lemp icvj ipy iza 2aci 2aes 2afm 2apv 2aqw 2bye 2bdx 2crb 2cty Zevj 2cuq 2exl 2ev 2ke 2mu 2nm 2nw 2on 2rf 2tp 2uo 2xi 2xai 2xaf Sacm Sble 3bmz 3bq 3cdk 3ck!l 3mv 3o0t 3qp 6aou G6bav 6ben 6bhr 6bqt 6cepf 6cuw G6bhao 6bdk Gor 6oi 6pw Tuw 7Tmn 7bx Saag Sagi Sara Satx Samd Samp Sapm Saul Sazt Sbbe Sbbc Shew Sbkm Sbuy Sbaq S8dbm &8de S8dce Sdpa &dpl S8dia Sdqk Sdqz Ses 8g¢b Sof Sot Spl Srt 8sx Szae 9acl Sact 9aex Yafb Yana Yaot Yara Yarr Yawe Sayd 9axo 9baz 9bdt 9bdq Ybe 9bff 9bn Ybpw Ybp! Ybqa Ibre 9brk 9brq 9brj 9bxw Ycet 9cj Icte Ytuc Ievn Yevg Scye Scym Yecys Ycve Yedz Ydap YXdbf Sexe 9cxs 9dmj S9dng 9dol 9dpj 9dud 9dvf 9dwp Y9dz Y9dzs Yebp Sebw 9efe 9efk Seky 9ebl Beme Yes 9kg Ymn Ysw Ype 9zt spe ocdj ag8 b-82 5zaz giq cv6 rxy c-lar c-2cg m-jh m-9a. ' Calls Hi ST 41 Sww, W. W. Adams, Box 214, Center, Texas lee lda 1f] lgr lja luw 1xm l1xv lyd laab ladd ladf lahl laij lamd laos lapz laxa layj lay! lbee libeg lbdp lIbhs lbie lbwi lbyx lIccp lIcew Icib leqr Tav 7bb Tes Tdu 7fq Tgj Tit Tic 7jf Tit Tmr Tnh Tob Tpt Tpu Tpv 7tm 7uj Tuo 7ut Tuw 7wu Tya Tadf Taek Tajb Jaro a-2ac a-2am a-2cg a-2cm a-2cn a-2cs a-2dj a-2ds a-2¢w a-2ij a-2jm a-2lk a-2]lm a-2mh a-2re a-2tm a-2um a-2yh a- 2yi a-2yx a-3aj a-3am a-3bd a-3ef a-3kb a-3lm a-3lp a-3ls a-3o0t a-3tm a-n3s a-4an a-4ca a-4cm a-5aa a-bay a-5bg a-5da a-5kn a-5if a-5lo a-6cj a-7cs a-7Tcw a-7dx a-Thl a-7lq z-laa z-lac z-lao z-lax z-lwu z-lxa z-2ab z-2ac z-2ak z-2bx z-2ga z-2xa z-3ac z-3ae z-3ag 2z-3aj Sak z-3az z-4aa z-4dac z-4am z-4av z-4mm c-lar c-2ax c-3aj c-3bf c-3bl c-3by c-3cs c-3eg¢ c-3jl c-3kp c-3mv c-3ni c-3xi c-4bf c-5er c-5ef i-lor i-Ino i-lij j-joc j-lpp ch-2ah ch-2ld ch-3ag ch-3at ch-9tce pi-cd8 pi-lfrm pi-lhr bz-ap bz-2aa bz-2ab bz-5ab bz-spe hu-6clj hu-6db! hu-6buc pr-4ja pr-4rl pr-4sa m-lj m-ln m-9a m-bx Mise. agb dx8 kegk nkf nag rxrd rxy vkn fw. m-js. 6bws-6byg, Russ Shortman, Jr., 721 West Jackson Place, Phoenix, Arizona laao lare 2bbx 2bir 2cx!] 3bwt 3tq 3bnt 4bu 4rm 4tv iwe 4xe 4xj 5arn 5acl 5agu Saf 5mb 5eh 50q 5za 5zai jadm Taf 7pj Tip Tif Tob Saly Sbox 8g¢z 8zg 9egg 9dbf 9dkm 9dvl hu-6buc hu-6aff a-2yi a-2cm a-2cs a-Tcw t-4aa 20 meters: lga 3apv 6cew 6ts Scrr Spl 9bnv 5 meter band; 6cenc 6dai (pse qra 6dai?7) 6arx, Raymond M. Moore, Box 1222 Hollywood, Calif. a-2jr a-2tm a-3bd a-5xg ch-2ld ch-2ar hm kfhw voq vye hu-6asr j-3kk j-8aa m-lm m-ln m-9a o-a3b o-a3e r-bai 1-ga2 z-2ac z-3ak z-4aa ?3en. 6cct, 5529 Fleming Avenue, Oakland, Calif. a-2cs a-2cg a-2yi a-3ao0 a-3bd a-3ef a-3en a-3ls a-3tm a-dam a-4an a-4mm a-4rb a-5lb a-5lo a-Tla e-arl ei-pk7 f-Sab g-2mn g-2ls g-20od hu-npm hu-6aff hu-6bue hu-6duc hu-2yi j-laa j-lts j-lpp j-3kk j-joc m-ln m-laa m-9a m-bx m-cx4l1 r-aa8 r-afl r-cb8 v-dl4 v-du4 x-2bge y-2ak z-lao z-2ac z-2ae z-3ai z-3aj z-3ar r-S3am z-4aa z-4ac z-4ag z-4am z-4av pi-lhr pi-ldr sk2 dx8 ke vkn vaf au-7mn au-7kx au-7bw bam rxy rl wwdo npm npn npo np! npu npa noh nar nra naw nne neqq kfuh. a-3xo 7bb, E. R. Stevens, 703 North 50 St., Seattle, Washington All in Daylight August 21, 22 and 23 lbwi laci lemx llw lzw Izy 2ate 2bur 2uo 2cty 3aha S8edk 3zo 4rm 5aab 5afs 5agu Sarf Samb Sdid 8azu 8bpr Seq Sbti Scxi Sbre Saul aa7 bb3 au-7Tbh hu-fxl hu-wyl e-4aan c-4dq c-4du c-4cl a-2bb a-2ij a-2ip a-2yi a-2no a-4cm a-7aa z-4ac fw xam xda giq voq zbk du4 nar npm npn npa npg np! nkf nba npo b-4yz bam i-lIrg r-cb8 y-led kfuh ug pe-6yx cs-okl fnd osla joc. J. F. Keller, 400 Perry Street, Bucyrus, Ohio a-2bk a-2cs a-2yi a-2tm a-3kb a-3ef a-3xo a-3yx a-5kn a-5bge a-7h] a-9or z-lao z-lax z-2ac z-2xa z-3ae z-4aa z-4ak z-4am b-4rs bz-2ab bz-2af bz-2ag bz-2aj bz-2ay bz-5ab bz-5bad bz-sql bz-rxy bz-law ear23 f-8fr f-S8ix f-8jn f-8yor f-8kf f-octn g-2sz g-2nm g-5dh kagb m-jh m-laf m-lb m-In m-9a n-pcll o-a4l o-a4dz o-a3b p-3¢b -8fz q-hik r-afl r-bal r-fb5 y-led y-jep fm-8mb fm-8ra gi-6mu wnp npm nisp niss nisr nisf not naw nna nne nidk nba nvu nee ojqe ojqv kfih kdts kdeh xam dx8 Ipl. Frank Leis, 1940 Larrabee Street, Chicago, III. lagd Ibex Izk 2aix 2awq 2bez 2ci 2¢0 2ms Sauf Sbwt 3ea 3en 3jf 3te 4aah 4ei 4io 4jk 4la 411 4oa 4qb 5ace Sacy Safe Saih 5ajj Sake Sak! Saky Same Sard 5ato Baty bbz 5dq 5ea 5ii 5jz Suk Swi 5yl Gael Gakm

Page 44

6ku 6rr 6vz Tae Tasb Tbb Tob x dxS rxy. Ee. Griffith, 118 College Avenue, Northfield, Minn. a-2no a-2cs a-2yi a-3bd a-5bw ab bze-spe ch-2ar f-8gi f-8yor r m-l1j m-ln m-5c pr-4pr u-6zac ‘ae a-2xa 2-3ai z-3aj z-3ak z-4daa r awe ft] ebk kebb vye wnp wwdo npu npm naw nar nba wva wvc x9 ¢9y cx7 dx8 nao ngg wvy xda B. Miller, Mishawaka, Indiana Sem a-3kb a-3wm a-4cem a-4cz wh a-7Tdx a-7la b-4zz bz-lac bz-2ab h-2ar ch-2ld q-2bz m-1lj m-In <a z-Sak z-3ar z-4aa z-4ac z-4am npu rxy spe vyg wwdo. House, Wilson Road, Smetwick Staffs., England lvw Isw Isz Ixv Izd 2akm 2awz : 2nz 2uo 2za 2zv Bble 3wf 3wi s 4hu 4mv 4sq 5ado 5adz Saka arl 5arn 5dq S5fh 5fm 5ek Sew : rai Gapp 6apw 6aqg 6aqp 6basd 6Gawt G6bhad 6baw Gbav 6bes 6bfe 1 6hhz 6his 6bjd 6bhjv 6bjx 6bmw 6buc 6bvi 6eco G6esx 6ct 6cuk 6dh 6dl 6dn 6eb Gec Gew 6fz Gag b 6e2 6xaf 6xao 6zac Tab Tav 7co eb Tge Tit 7jf Tmp Tno Tnx Tob it Tvr Twu Twv 8aj Sajm S8amd . Sesv Sded Srh 9aca Yadn Yads latq 9bmd 9bpw Ybre Ybvh Ybwb che 9ck 9clj 9exe Ydav Y9deg 9mb 9no Yoo 9sd 9xa a-2cg a-2tm a-2yi a-3kb a-3my a-3dta it a-7Tdx a-Tdy c-4tg -6axw hu-6cefg¢ hu-6def hu-6nb m-lk m-9a xam pi-lew pi-3aa ~Qak z-2bx z-4daw z-4am z-4av kegoknf npm nna ntt wis wnp a wva E. B. Jay, 19 Elm Close, Amersham, Bucks, England im laeq laff laga lajl lajp laoh lav! layt lazd lazj lben lbco lbus lbxe leav Icaw licax Iccz mp lemx Ilka l1kk lou Ipl Ilqi faaw 2afo 2ahk 2aim 2akv 2amj °bbx 2bye 2bxj 2cjd 2erb gy 2iz 2id 2ls 2mu 2od 2pf scf 2acm Safq 3ahl 3bel 3bes ima 3zo 4by 4ea 4hx 4hy 4in 4it jon 4oc 4ac 4qy 4si 4wa 4xe imq Sql Swi Saaj Sabm Sada . Shay Sbece Sbfo Sbni Sbox S8bpl Reen Schp Sdgo Sdgy Sew 8jq 8kf Gewz 9ckc 9ek 9eev Yeez Yegh idx c-lar 2-alm z-lax z-2ac z-3ai fam bz-lak bz-lax bz-lbh bz2-1bl m-9a cgb keau Ipi nba nkf nip wey wiz wnp wvc xam 212 Victoria Avenue, Windsor, Ontario, Canada 80 Metre Band d 4bf 4bhaq 4bx 4dby 4eu 4fea 4dekb ifw 4g] 4cy 4hi 4hu 4iq 4it 4ja imi 4ni 4oa 4or 4ou 4pf 4pz 4qb itz 4va Saad Sace Sacy 5adk 5ado bags Saip Sak Sama 5Samn Sapg tp 5atv 5atx 5Savz bax begt 5bcwq 5fb Ses 53f Ses Ske 5eg 5mq 5mk Spk Sel Srh Srw Ssr Ssw Ste 5uk si Sto Seas Gafs Gaji 6akx 6bh< » 6eal 6eqa Scto 6cuc 6dag 6dan 6ddo 6uk 6uf 6xao 6xi 6zb Tek Tge Tkr -8fe c-2be c-4bt. orge N. P. Allaway, 146 Umbilo Road, Durban, Se. Africa 6xk Gegp Gbpg 6Gbmw 6ddo 6cew QsT

October, 1926

Sdju 9drs Sech 9eji bz-lao age and agb idg pepp andir b82 tuk npm npo suc fel rer! 6nd. C. Conte, 24 Allee du Rocher. Clichy sous Bois, Seine et Oise, France laal laao laay laff lana lawe lIbez Ibie lbuo Ibvl leaw leez licez Icib Iemb Icmf Icmx lIcnz Icpi Idi ldp lgr ljy Imv Imy lon Irb ire luw livw Ixv lzk Izw 2aaw 2aes 2adm 2amd 2asq 2atc 2avg 2brb 2bye 2cdy 2cyd 2eyx 2ev 2mu 2nf 2pr 2rv 2tb 2tr 2uo 2xaf 2wh 3afq 3auv 3bva 3cyn 3cmn 3cpo 3nu 3ot 3sfu 3tr 320 4anz 4dee dha 4if 4lk 4mao 4nh 4pu 4pi Swi Sada Sahe Sade S8bbe 8bni 8bre Sbre Secq Scdv Scug Sowp Sbpd 9dk Seyi 9kd Ske naw nidk niss not nwp wna c-lam c-lar c-2be c-3ay e-3kp c-3by c-8wm m-jh m-lk m-ln y2AK-yIBR (ex yJCP) Juan C. Primavesi, Box 37 Montevideo, Uruguay lao laao laiu lalr lbbj 1blf ich ici Icib Ickp Icmp lemx Imv Ixv lzq 2aao 2ahm 2acp 2amj 2aqw 2apv 2erb 2crd 2eeb 2ff 2ek 2ld 22x Saha 3eo0 She 3o0p 80z 4cu 4iz 5akn Saw Sem 6cbhp 6ce 6ckv 6rn Saly Seca Scau Sdon Sdmz Skpce Sadk Sado 9axq 9bdq Sekr 9xi 9zt a-3ef a-dan b-4yz bb-7 f-8ca f-8jn f-8kf f-pe g@-2bz g-2ce g-2Zit g-2ts g-idh g-5lb g-5nj g-6og hu-Gaxw i-ler i-l¢gw j-3aa miaa m-lj nofp n-pe2 p-lae pi-lbd s-2nm z-2ac z-2xa c-Scp s-2co a3SR, J. Sullivan, 58 Shoohra Road, Elskernwich, Melbourne, Australia laao laci laep laf law laxa ibep ibei 1bif lbze leal lemf lemg Icmp licnp ico Ipr Ite lyb lyd 2ag 2ahm 2anm 2au 2av 2ay 2bgi 2cb 2cua 2gk 2ke 2nz 2uo 2we 2xaf 2zv 3awa 3bmz Sbuv 3bwj 3ca 3cjn Sef 3ek 3lw 4ak 4b] 4cu 4jn 4oa 4rn 4sa Atv 4xj 5acl Sado 5adz 5agn 5Sagu S5aky Salz 5aq Satg batv 5Saua 5auz 5bav 5dl Sem bBhe 5jd 5if 5nj Sbnw 5oq 5ov Spa Sre Suk Syd 5Szai 6bamm Gabe Gabj Gadt 6ahp G6aji 6ajm 6akm G6akw Gakx Galt 6akp 6asv 6at Gaus Gawt Gaxw G6bav 6bbe Gbhbv Gheo G6beq 6bhz 6bil 6bis G6bhjd 6Gbkh G6bls Gbhmw 6bol 6bpg 6bq 6bts 6Gbua 6bvo 6bwi 6bye Gcae 6cbhb 6ccl 6cee 6egk G6erew G6chi 6chs G6cix G6ckx 6ckv 6celj 6emd 6emg 6cmu 6ene b6enm Gers b6ct 6cte GScto 6Gcub 6dag 6dal 6dan 6deq 6ea Geb Ghm Ghv 6jn 6jq 6kb 6kd 6kw 6ky 6mb 6nx 6ny 6ei 6pa Spr 6ad 6qu 6rn 6rw 6sb 6sv 6ts 6ud 6vz 6xad 6xe 6xi 6zbe 6zr Taah Jaaj Tay 7es 7df Tdm Tek Thb Tif Tij 7lq Tpf Ttm 7to Tvh Twu Txe 7zx Saax Sadg Sadm S8aly Sanb Sayy Sbau Sbe 8Sbce Sbhm &8bit Sbp!l Sbr S8bt Sdep Sdqu 8dqz Sez Skw &8pl &8rt Sve Sxau 8xe 8zk 9ad Sadn Sazp Sbbf S9bbw 9bdw Sbe Bbht S9bj 9bta Ybvh 9bwbh Ycby Yccs Bche 9ck Ycld Sen Ycox Yepm Bev 9cex 9db Sded Sdht 9dnge Sdog Sdpe Ydpl Y9dqu Y9dre Sdrd Sebp Yeez Yeii 9eji Yek Belt 9fj Shp Y9ua Y9wi 9xi 9xn 9zt c-3xi c-4gt fi-8qq f-8pm g-5if hu-6ajl hu-6aff hu-6ajl hu-6buc hu-6cest hu-6dbl hu-6def hu-6zac i-lwr j-lkk j-lts j-lzq m-jh pi-lau pi-lhr r-cd8 r-lcem pi-3aa. a3 WM, W. J. McAuley, Union Street, Brunswick, Victoria, Australia laao laiu lapz lbdp lbze lemf lemp lemx 2agaq 2kx 2mk 2mu 3auv 3che 3hs 3lw 4eo 4bl 4gy bSaky 5amn, 5eh 5kk 5uk 5zai 6aak G6Gafs 6akm 6Gbaf 6bev 6bhz 6bq 6bxd 6cae 6ec]l 6eew Gcky 6cto Gcuk 6kb 6vh Taaj Tay 7gb Tnh Tno Trl 7tk 7Tzm Sadm 8alo Sbee Shen Sdqz Skw &8pl 8xe 9avj 9bac 9bbf 9bmx 9bsz 9bta Sbvh 9cde 9che Yclr Sepq Yexe Yded 9dka Seas 9eji Sekf Beli Selt Shp 9mb Swi Y9xa Y9xi Y9zt f7 Alaska 7mn; b-d4 bz-lbd c-4gt c-3kp c-lar ear 23 ear 31 f-S8jn f-Sje f-Six f-8kfe f-8tk f-8jz g-2cc e-2kf g-2lz g-2nm g-2sz g-2od g-2qb g-5dh g-5nn g-5hs g-5if g-5sz g-5tz g-6ju gi-2it gi-bnj i-lay i-lew i-ntt j-laa j-lpp j-lkk j-joc k-ki8 m-laa m-lb m-9a m-jh n-ohb n-pb3 n-pb7 s-2n! pi-lau pi-lew pi-ldl pi-lhr pi-cd8 pi-3aa pi-nnb fi-8qq fi-hya pr-4sa Bor- neo vaf, Panama nrk, Java andir, Tahiti bam, China ffz Palestine 6yx, 6zk hu-6clj hu-6aff hu-6buc hu-6aj! hu-6dbl. S. W. Hecker, Camp Street, Temora, N. S. W. Australia Ip] lyb Ite laep Irg Ibb Ifq lht 1fx Irm tha Ipx Ika laa itu lagh laac laat Iemp icmx lahg lbze laq lfr lipid luw lii laao laxa lbux 2lu 2agt 2lz 2qi 2li

Page 45

r= wel Ee 6 nePRPROoey 6A

October, 1926

2th 2xaf 2xs 2bbx 2cxw 2gy 2aq 2re 2ds Zahm 2ic 2zb 2we 2zv 2rv 2acs 2Zaan 2xbf 2aim 2kg Zanm 3ot Sbva 3kw 30i 3ac 3bw 3ju 3ef 3sc 3ckl 3bwj 3id 4gi 4al 4gt 4tm 4rm 4mi 4ate 4eco 4tv 4cm 4si 4ry 4sb 4fl 4tn 5aj Sag! Suk Sng Ser Szai Sgr Srfb 5bew S5agz 5akz Sia Sagn Sva Saav za 5jf Sae Sls Gaji 6aij Gaoi 6ahq 6awt Gan G6agk 6ank Gaf 6Gaqp 6bhz 6bjx 6bao 6bmw 6bsz 6bcf 6bs 6bm G6bha 6bq 6bil 6bbv Gbaqr 6bbj 6cso 6cj 6ct 6egw 6cix 6dah 6cuk 6on 6fa 6jp 61j 6ot 6rw 6tx 6ut 6uar 6xqb 6zbe 6xad 6cmg G6uc 6qad 6dai 6chs 6btm 6bgo 6Gew 6ais 6bav 6cz 6ajl 6kb 6basw 6dnb 6kx 6xi 6ccl 60i 6ctd 6hm Galt 6hv 6jn 6dbe 6d! 6ac 6bjl 6cevp 6boo 6ctg 6cgk 6dam Gaiv 6cgn 6sv 6apk 6bon 6ckl 6aak G6bav 6js 6pr 6qu 6ctc 6ahp 6auf 6htt 6cdw 6np 6bpg 7Tuz Tay Twu Tek Taaj 7lq 7fq 7rl 7df Teb Sakf 8aj Sbe Sbf 8ca Scyi Sct Ser Sgz 8pl Sry S8dns Salf 8bnh 8Sdvi 8bn 8Sdia 8xe Skw 8sd Saly Seb 8dem 8eme Safq 8bt 9ake 9ack Yado 9bht Sbby 9bbj Yecq Icen 9ck 9ded S9dux Ydvr Yeht Bli 9nx Yrh Yuc Yek Yeld 9xb 9dng Yeky Yebj 9ksl Yeli 9bzi Yeji hb Y9zt Yjh 9gx 9bjz 9dwp 9bmx Ybwo Ydqu Ywi Yepq Y9fj YIcepm 9cepk 9doq 9btr hu-fxi hu-6clj hu-6aff hu-G6asr hu-6ébuc hu-6bdl 60a f-8jn f-3ee f-8xxo pi-lhr pi-lau pi-ld pi-lew pi-3aa pi-cd8 r-cb8 m-9a ch-leg ch-9tc c-3aa c-4gt c-5go g-2kf g-2od g-2nm g-2lz g-2cc g-2az g-5sz g-5si g-5if g-5nn g-6nf g-6uz g-6lk j-lkk pr-4rl pr-4sa fi-8qq fi-8lbt n-pell n-pcuu n-pepp n-stb n-pb3 p-lae gi-inj pe-6zk ear21 o-a3x i-lax k-agb npm kie npj pkx ane andir anf fnd fnk fw npo Ipz npm npu vmeg 6zac rrp nrrl age gbe nve geft nry nifj kfuh vzbw kegk. Unknown—wvy noen neqq f8z mjh 8pm b8S2 muu ira eteav pk4 9h¢e 9wj wehm 6xy Ipv. Frederic J. Barnett, F. M. S. Railways, Gemas, Ded. Malay States 2ac Tit 7mf Tmt 9lx Tho 7lq 7tm Twu 6cmeg G6bpg 6ckv 6dceq 6nd 6xc 6xav Sec 6pr 6azq 6emeg G6bbq 6bdl 6Gewk Grw 6bjx 6ctx 6abg 6by 6cto 6btm 6clk 6be 6dat 6bq Galt Galv j-lkk j-ldx j-S8aa j-lfm j-3az j-lzq j-lts j-yo z-2bx z-2ac z-lax 2-2xx a-3xo0 y-2bg pcepp pcll pemm niss agb suc ocdj. Pacific Division Convention VERYTHING is all set for the Pacific Division A.R.R.L. Convention to be held at San Jose, California, October 15, 16 and 17, 1926. While a few details have not been settled at the time this is being written, these will be settled definite- ly by the time this is in print. Accommodations have been provided for four hundred to be in attendance and by all indications the attendance will run over the mark. This is an A.R.R.L. Convention and will be run as such. San Jose is fortunately well situated as a center of amateur activities on the Pa- cific Coast, there being a total of over a thousand licensed amateur stations within a radius of one hundred and fifty miles. Then too, having a large tourist hotel such as the Hotel Vendome, where the conven- tion will be held, with all the facilities for handling such gatherings, helps to add to the inevitable success of the coming con- vention. In fact, the Santa Clara County Radio Association, under whose auspices the convention will be held, feel that they were especially fortunate in securing this hotel. Especially so, in view of the fact that they are securing accommodations at a rate less than half the price paid by other large conventions and gatherings at the same hotel in the past. Some of the names on the program of speakers are nationally-known radio

QST 43

authorities, among them being: A. A. He- bert, A.R.R.L. Treasurer, of Hartford, Conn., Mr. Kolster of the Federal Tele- graph Co., Lieut.-Col. Robert Loghry, Sig- nal Engineer, Ninth Signal Corps Area, U.S.A., and in charge of the radio intel- ligence service in France during the war; Gerald Best, Technical Editor of Radio; D. B. McGown, Radio Inspector of the Sixth District; A. H. Babcock, Director Pacific Division A.R.R.L.; Col. Dillon, Radio Supervisor Sixth District; Mr. But- ler, engineer of the E. T. Cunningham Co. Another means of making this conven- tion attractive to the hams, is the fact that the reservation fee has been placed at the low figure of $3.50 which covers all conven- tion activities, the ‘big feed’ and entitles the holder to the reduced hotel rates. The rates of the hotel for the delegates may be secured for as low as $1.50 per night. —E. A. W. : $, Stray s'$) We ran a stray in the September issue telling you of the handy little cards Hinds and Edgarton of Chicago were giving to the hams, on request. Unfortunately there was a “bull” in their address. This month we are running a reproduction of their latest—a large sheet of Old and New “Q”

THE HAM’S HANDY REFERENCE SHEET TO St UNG OF TE Was WHERE YOU CaN SEE TT

Old “Q” Signals for Radic New Ham “Q"’ Signals re ona - ~ =e ” a on = 7 = = = = 2 = or om tee - =. -— —— =e I ee = ee ev a vas INTERNA TIOKAL INTERMEDIATES pe ‘ pana = L = - a a ¢ ee a — ~ > = a ad on ' —_— = ‘ a = N — a > =. = ° = oe 5 io n r : a ; rs — - i —- wary HINDS EDGARTON ™ rene?

Signals, Special Signals and International Intermediates. These sheets are printed with letters large enough to be read at some distance. They can be hung on the wall of the shack and are about the handiest thing we know of for the operator to con- sult. Later ones have “R” system. They can be obtained with the compliments of the publishers, Hinds & Edgarton, 19 South Wells Street, Chicago, Ill.

Page 46

follow Pr. I f8JN f8CA amate R. E to a grout inter on sh “Jou - of it many {8GL; Martir meetings accept Its ain and it 1 ing and on from last month’s News Department we are to three additional coun- f foreign DX data. Best Time (GMT) Traffic Best DX For QSO Handling | Band U.S.A. allowed 10-42 2200 to 0700 Only “experi- mental” 2-36 2200-0000 and Yes 0700-0900 Yes, if does not -87 0330to 1440 complete with Gov- ernment owned tele- graph Sve. waveband for QSO with untries is the so-called France Section of the L.A.R.U. last month. They are as rary President, Lefebvre, Leon Deloy, f8AB and Vice-Presidents Levassor, Blane, f8DE; Secretaries, sger f8GO and Audureau, assor who presided over the ned the pleasure it gave all Mr. Louis and Mr. Deloy The new officers of the ed a message of friendship members and foreign E. F. includes all amateurs transmission and reception Its official paper is the known all over the world. ») promote amateur work eryone to assist it by join- with the R.E. F. In spite liday time, there are still key. The receiving is October, 1926 er wi Milk \Wew I mt ‘im a =) £44 | Wi) . cS A ‘ still good in spite of the season, and static is rare, generally speaking, U.S. stations are extremely consistent in the morning from 2 to 6 G. M. T. The signals of the power- ful station f8JN are heard very QSA by fe8GG in Shanghai, China. The French set- tlement in Shanghai also boasts of the sta- tions fe8AG, feSEM and fc8ZW. All of these stations transmit from 20 to 24, G. M. T. on wavelengths between 33 and 35 meters. f8JN has also been QSO the U. S. ships NISS and NUNX. Richard Jamas (fi8QQ) the well-known amateur in Saigon, Indo China, has just been given the official call icl1B (Note—radiogram received at A.R.R.L. headquarters from exfi8QQ says that the Government of French Indo China has adopted the intermediate “IC” for all ama- teurs in that country—J. M.C.) OCBV is the call of the French Military Station in Beyrouth, Syria. The QRH is 58 meters.” —J. Reyt. f8YOR Holland “Although the Dutchers are still troubled by the Government, they do not QRT, but continue to do good work. During the great Radio Exhibition in the Kurhaus at Scheveninger, an I. A. R. U. meeting attend- ed by more than 70 hams was held. It was decided to hold Saturday Night Prayer Meetings on 90 meters. oCO is preparing for the coming 5-meter tests. oWC tries to keep his daily schedule with u2CVJ and has been in touch with South Africa. oEP and oPM continue to work good DX. oPX keeps his tubes hot by relaying messages for Honolulu and Hong Kong. oWB after working the U. S. and the Antipodes and blowing many 50 watters is rebuilding now. STB returned to his first love, 1000 meters. PCTT, PB2, oWF, oUC, oF3, oRT, oAM, oAX, oNL2, oGA and oKV work Europe and occasionally some DX. oQX, after being confiscated, hopes to be on the air again soon, after having paid his license fee. PB3, PB7, PC2 and oRO seem to be able to work every station heard. oKH was the first “N” to hook KEGK. Our Section con- tinues to grow rapidly although only a few of us are licensed.”—C. de Beaufort, Traffic Department, Dutch Section, I1.A.R.U.

Page 47

October, 1926 Ireland “It does not seem to be known generally that Ireland consists of two countries, name- ly; Northern Ireland, and the Irish Free State. The Northern Ireland hams are under the control of the British Post Office, and use the intermediate “GI”, while the Irish Free State, or Southern Ireland, gang are under the control of the Irish Free State Govenment and use the intermediate “GW”. Southern Ireland calls commence with the number followed by one letter, i.e. 11B, 12B etc., while Northern Ireland calls are issued in.the same manner as British amateur calls. In Northern Ireland plenty of good work has been done. gi2IT has been QSO about 44 countries and all six continents since October last and has put good phone signals across to Brazil, U. S. and Canada. He has also worked ANDIR, Java, being the second British station to do so. gw5NJ continues to QSO Australia, New Zealand and South Africa, and lately has worked Argentina. Phone sigs have been put across to Australia, Canada and Brazil. gi6MU is at present on a volage from Ireland to Canada and back, and contact was maintained easily all the way across the Atlantic each night with 5NJ and 6YW. 6YW uses an input of 6 watts and is one 1f the best low power G’s. He holds a record by raising and working Porto Rico on 2 watts, and on this power he has also been QSO U. S. and Canada regularly. This is hard to beat. In Southern Ireland, no station at present uses more than 10 watts input but excel- lent work has been done. 11B and 18B have both worked the U. S. more than once and 19B has worked all Europe on 3 to 5 watts. Other excellent low power work has also been done, there is not space enough to give details. Reports for Irish Amateurs whose QRA’s are unknown may be sent in the meantime c/o W. R. Burne, 34 Dame Street, Dublin, Ireland.”—F. R. Neill, 5NJ. South Africa By the time these lines are in print and in your hands, the Rand Daily Mail Springbok contest will be in full force. Look up the last issue of QST and in the I.A.R.U News Section you will find dull details governing the contest. The “U’s” are urged to co- operate fully with the South African boys The Springbok is’a trophy well worth hav- ing, and the contest is going to be a good one. Don’t forget the QSL cards. — “Conditions in South Africa are improv- ing as the winter draws near. “U” sta- tions are coming through with good strength. QRM from the States is very bad, at times it being impossible to sepa- rate some stations. A good deal of ex- perimental work is being carried out by our boys. We do not have large numbers, but QST 45 where we lose out in number we more than make up in the energetic manner in which all of the South African amateurs tackle various problems. oA4V, oA3B, oA5X and oA3K of Johannesburg are always on the air. 0A4Z, oAGW and oA4L are also con- sistent workers and between them have done a great deal of DX work. World-wide re- ports of long distance daylight work are Starting to come in. It is easily possible to keep communication day and night at all times throughout South Africa in the 30-to 10-meter band. oA3E of Durban has been doing good work with the U. S. A., QSOing the Sixth District in daylight. I hope that the New Zealanders and Australians will please take note that the “O’s” are anx- ious to establish communication with these countries. New Zealand is about our only “dead” country now. A good time for QSO with the Z’s from South African stations would be 0600 G. M.T. The S.A. R. R. L. is now on a good sound footing and on good terms with the Government. The county has been divided up into 14 Districts, each having its Divisional Headquarters. Ray- mond Coombs of Johannesburg was the founder of the League and is the Organ- izing General Hon. Secretary. Conditions in South Africa for reception are very favorable, although at times QRN abounds. We do not suffer from QRN, though, nearly as much as our South American friends. For the information of the U. S. amateurs in particular, South Africa, contrary to many ideas is not such a wild and savage country as many are led to believe. We are a progressive country, quite modern, and it is hoped that the band of American tourists who have just been through the country will arive back in the States say- ing, “we were agreeably surprised.” —R. Oxenham, oA4L Arabia A new station in what is probably a new country was speared recently when Jack- son of 1CMP worked tjCRJ whose QRA was given as J. Rockall, Amman, Transjordan, Arabia. The QRH of CRJ was 36.8 meters and the note a pure D. C. one. Shortly after this QSO Borden of 1CMX was QSO CRJ who repeated the QRA as above. Later 1ALR was QSO CRJ, also. Russia 1CMP and 1CMX both worked AZUT re- cently. This station is located in Esthonia, near Petrograd, Russia and is the experi- mental layout of a prominent engineer in Russia. The QRH at the time of QSO was about 32.5 meters. His input, we under- stand, is around 50 watts. Borneo Two new stations in Borneo have been QSO’d by a number of “U’s”. They are OO —

Page 48

Kuching, Sarawak, Borneo Gray Kuching, Sarawak, Belgian Cengo , station beF2, Robert, TSF, gian Congo, Africa has been ral British amateurs. u3JW ng him working g2TO and \VB reports hearing him work 2VJ has worked him several also reports working 1CW in Java of u7IT worked PK7 in va, who sends the following mateur activities in Java; tically no hams out here but f atmospherics. BCL’s hear Australian stations, and F. B. every night. There ired or a thousand B.C. L.’s hams who have installed Receiving as well as trans- tly prohibited by law. Most like mine, PK and a num- now PK0O, PK1, PK7 and cards can be sent to me A.R.R.L. Headquarters). transmits regularly from 1140 T. every Tuesday and Thurs- ters. PK7 has increased his vatts and has been QSO the ght afterwards. He uses two \ tubes for transmission, with f 300 obtained from B bat- uit is a Meissner. PK1 is r in the 40-meter band with a put.”—PK7. e of a number of U. S. hams Kw Tellows. West Africa re is something else to shoot szzens who is on the Presby- f Foreign Missions at Ebolo- West Africa recently visited California and has just re- igain for West Africa with ive transmitter and receiver ion will be put in operation arrival in West Africa. Un- by the Government he will with the intermediate fo—tts anchor somewhere near 33 VERY anxious to establish tacts as possible, particularly ng. If the French Govern- him a call he will use foPM call. The transmitter is a rating from a 1,500-volt dyna- ransmitter and receiver were yme of the Sixth District fel- given a thorough test before Remember the call, foPM, QsT October, 1926 keep an ear open for him and give him a QSR whenever possible. Chile We are reproducing herewith a photo- graph of station ch2LD, the well-known outfit belonging to Luis Desmaras of San- INTERNATIONALLY KNOWN CHILEAN STATION ch2LD THE tiago de Chile. The tubes are UX210’s, there being two of them. Plate voltage at 400 is obtained from the city lighting mains. The circuit is a coupled Hartley affair. ch2LD’s DX is world wide. Dutch West Indies 2LE and 2APV have worked PJD who uses a “de” as an intermediate. PJD gives his QRA as St. Martin Island, Dutch Indies, an island due East of Porto Rico. Indo China fi8QQ, Richard Jafnas of Saigon, French Indo-China sends us a radiogram saying that the Government has decided that inter- mediate for Indo-China will be “IC”, and that fi8QQ’s new call is iciB. Italy “Although it is only a short time that Italian amateurs have been operating trans- mitters, considering the results that they obtain every day we think that Italy is now one of the countries showing the greatest activity and most interest in amateur radio. This is due largely to the wide scope of activities of the A. D. R. I., the Italian Ex- perimenters’ Association founded in Novem- ber 1924 by several Milanese amateurs. At the outset the activities of this Association were devoted to the problem of obtaining official recognition from the Government, as up to that time all Italian amateurs were obliged to work secretly. The first Italian Transmitters’ Competition was organized in November of 1924 and with the contest the first licenses for amateur transmitters. and a number of fine prizes, were obtained from the Government. The results of the

Page 49

i el Ome cries gamwen cri contest were highly satisfactory; more than twenty Italian stations were received in America on the 80-meter band, and with 50-watts input to their transmitters. Be- fore then no Italian stations had reached across. Since then the number of A. D. R. I. members has increased so greatly and pro- portionately that one can notice the remark- able progress amateur radio has taken in this country. The American hams who par- ticipated in the Paris Congress held in April of 1925 will remember the great number of Italian amateurs who were present. The interest and part they played in the forma- tion of the I. A. R. U. is also a matter of radio history. “At that time they were already repre- senting the only European association with the same aims and organization as the A.R.R.L., and already had their official organ called, “Bollettino Mensile Della A. D. R. I.” which is the only Italian maga- zine “devoted entirely to amateur radio”. The Government recognized the importance of the association, and caused it to give the official call signs to transmitting sta- tions. Lately a committee composed of Government authorities and amateurs studied proposed regulations which will govern the operation of amateur stations. The A. D. R. I. is well known by amateurs and foreign associations for the important relay and QSL service that it gives. We are sure that these lines, appearing in the official organ of the greatest radio associa- tion of the world, will make the Italian ex- perimenters and their Association better known.”—F’, Pugliese, Gen’l. Secy., A.D.RJ Spain “The number of licensed transmitting stations in Spain has passed the 40 mark. During the past two months, however, work has been almost at a standstill due to the terrible heat. Only three or four stations have been in operation consistently. EAR20 and EAR1 have no trouble in working all countries of Europe and EAR1 has been QSO the U. S. during the past two weeks. He has also worked z2AC and z2AE. The majority of the fellows are QRT, though, and no new activities will be initiated be- fore Fall. The EAR Association has pro- posed the granting of station licenses and call letters to receiving stations. The pro- posal has been well received by the ama- teurs, and should do much toward helping the progress of amateur radio. The EAR association has been responsible for the formation of a number of Morse Code in- struction classes in various cities in Spain. The bulletin “EAR” is the official organ of the Spanish Section of the I. A. R. U._ It is owned and directed by Miguel Moya. The bulletin does much to bring the ama- teurs of Spain (and of the whole world) October, 1926 QsT 47 into closer contact with each other. A Transmitting Contest is to be organized for 1926-1927. The EAR Association is foster- ing the contest whose object will be to estab- lish with Spanish amateurs, and later America, the Philippines, Cuba and Porto Rico. The contest will start on October 1st and will be conducted as follows: Merits of individual stations will be judged on (1) two-way communications with the greatest number of countries, and (2) the greatest number of individual two-way communica- tions. Power to be used will be that which is officially authorized. The wavelengths to be used will be those established at the first International Amateur Congress, in- cluding the experimental band. The EAR Association will publish the results of the contest as the contest progresses. Those amateurs who are interested in the contest should write the “Association E. A. R., Sec- cion Espanola de la I. A. R. U., Majia Le- querica 4, Madrid, Spain.”—Miguel Moya Me Strays) 9BHS suggests the scheme shown here for cutting down the QRM from a vi- brating M. G. set or a synchronous recti- fier: fatalof serng Base of MG or Sync; height * ; Sor @ /ayers flow 4 7 2r20g Gusher able at / ONE OF THESE PLACED AT EACH CORNER OF M.G. OR SYNC Captain Rex Durrant, late GHH1 of Mosul, is now located at the Radio School, Royal Air Force, Flowerdown, Winchester, Hants, England. The station call is GFA and is in regular operation on 43 meters. Captain Durrant will be glad to receive QSL cards at the above address. SBSS lives on a chicken (poultry) farm. They raise a new kind of chicken. By violet ray treatment they make the young chicks grow so fast they can produce full grown fowl in five minutes. If broilers are de- sired 8BSS has to run for the hatchet and work fast to keep the chickens from dying of old age.

Page 50

October, 1926 Correspondence The Publishers of T assume no responsibility statements made herein by correspondents You Mean, “Short Waves?” Oakland, Calif curred to the brother- rm “short waves” doesn’t t says. Take the BCL who | and manages to pick stuff—why he is “short re is the bird who grabs and with great difficulty at 40 meters—he’s “short wave, but some of us work at 5 meters, and hat to call the thing—we wave” too. Its tough. tuff. We are the only ones that 200 to 600 meters he Broadcast Spectrum. nything particularly funny m 60 to 200, let’s call this Region”. Below this, up very noticeably; per- the “Prolight Region”, - which is not sharply de- region would be be- eters. Below 10 meters “short waves and be- might talk of “low dea is we need a classi- It is suggested that Vaves” be given some job t rid of it for a while; its adopt something, even I iry. a classification. What i. Binneweg, Jr., 6BX A. C. Hum No. Charlotte, N. C. Edit We | tly been confronted with a igh relatively small, was neverth« lerably annoying and it is likely tl uders of QST will benefit by a nt of our trouble. As new short wave receiver was it he shack, we noticed a very pr \.C. hum which marred st we were unable to lo- the trouble. After the probl +h recept cate +} following changes were made the hum was absolutely eliminated. The house is wired throughout with black and white covered wire, the white wire being grounded and the black wire being “hot”. We had installed a double pole single-throw switch as a main cut-out and also had a snap switch as a main cut-out and ating switch. This latter one was wired- in in the white (grounded) wire, and gave all the trouble. As soon as the leads were changed over, putting the snap switch in the black wire lead, all trace of hum dis- appeared until the main cut-out was opened, when it reappeared. We have since found that the State code of wiring does not per- mit the white wire being broken by a switch, therefore a double-pole single-throw switch if used as a main switch, should have a jumper around the grounded side. With- out a jumper a switch of this kind is danger- ous in a line. —G. C. Brown Cheap Logs Oberlin College, Oberlin, Ohio. Editor, QST: A very convenient and inexpensive log book, which adapts itself beautifully to the type of work most stations are doing, -can be bought at any book or stationery store. It is bound in heavy canvass, corners leathered, and contains about one hundred and fifty pages of high grade paper, 8 by 12 inches in size. The pages are ruled horizontally and vertically, the latter being of special interest. This book, all prepared for use goes under the name of a double- entry ledger and costs about eighty cents. —~E. W. Thatcher, 8ZE QSLs Via Department of Commerce Office of Radio Inspector, Customshouse, San Francisco, Calif. Editor, QST: Amateurs throughout the country are sending cards to the office of the Super- visor of the Sixth Radio District, request- ing that they be forwarded to the various amateurs, and neglecting to enclose postage to cover the same. As there is no fund avail- able for such postage, and as they cannot be

Page 51

October, 1926 forwarded under the official penalty stamp, there is no way in which they can be handled. If the regular postcards are en- closed, or the postage included, we shall be very glad to accommodate them. Otherwise no action can be taken. . —J, F. Dillon, Supervisor of Radio Hi! 650 California Avenue, Venice, California Editor, QST: We quote verbatim a little gem from the “Voice of the People”, the column of The Los Angeles Daily News—a column where all fanatics of any sort may ride their hob- vies in the public eye.—“Los Angeles: The radio broadcasting situation in Los Angeles is a peculiar thing. If you don’t believe it, just move within a stone’s throw of one of the big stations and then try to tune that nearest station out on a Sunday morn- ing. It will be a great day when this business is regulated by Uncle Sam Interference.” Realizing the devotion of your excellent periodical to the public weal, we should wel- come a movement sponsored by you, for the introduction of a law regulating static, power leaks and wave propagation. Such a movement, we are sure, would be greeted with shouts by the radio fraternity. —C. S, Gleason, 6CJQ QSLL 597 North James Street, Hazelton, Penna. Editor, QST: If the subject will bear more discussion in QST may I have a few words? I would like to have some one point out to me what earthly good a QSL card is anyway. At one time they carried some information. A few usually supplied all that was required to draw conclusions—a carload complicated matters. Today the cry is “artistic” and original design. The original idea (as I see it) has been lost. Even so, what is the necessity of a written confirmation of something every- one tells you the minute you QSO? Where do fellows rate the slurs, etc., on their cards, intended to force the recipient into answer- ing or being a bum in the eyes of the world? How many cards have you seen that carried QSC? Nil here. Small matter as compared to how QSA a wabbling QSB is in China. My idea is this: if the QSLL hounds would spend some more time improving their fists and ears, not to mention general oper- ating practices, Ham Land would be a better place to live in. Since we cannot convert all, the second best bet, if you are bent on papering the last room in the house with 49 cards, is to have double cards printed and stamped. One card carries the informa- tion you desire to give and the other carries questions as to what you desire to know, with spaces to be filled in. Whatever stand you take please put 8BQ down on your Black List as not QSLing, and send your cards to me. For a QSR or test—F.B. OK QRV GA. —Herb. Walleze, 8BQ. i Central New York Convention (Atlantic Division) LTHOUGH this annual convention was A only a one-day affair this third annual ovent held in Utica on August 29th at the Hotel Utica under the auspices of the Mohawk Valley Brass Pounders proved one of the best held so far. The arriving hams were greeted loudly by J. Alton Fitch, 8BCW on a Bosch horn, which made every one feel at home, and immediately tin whistles were in evidence. After visiting six of the best stations, and by the way all of them were designed for efficiency, the gang returned to the hotel for a quick lunch preparatory for ithe afternoon session which started with a mov- ing picture of, “The Wizardry of Wireless” through the kindness of the Radio Corpora- tion. Later, another film from the Western Electric Co., called, “The Audion” show- ing what takes place in a vacuum tube, was shown, Both pictures were enjoyed by everyone. The General Electric Company again showed its co-operation by sending, Mr. J. M. Kendall, one of its Radio Engineers who gave very interesting information on R. F. feed lines. And Doc. White (New England Div. Director) was present with his pocketful of tricks which, if used by the fellows, would put the manufacturers out of business. The evening session consisted of a mighty good dinner supervised by G. H. Pickett who introduced <A. A. Hebert, A.R.R.L. Treasurer, as principal speaker, Timely remarks were also made by Chas. H. Schrader, President of the M. V. B. P. and Dr. Elliott White. Miss Mildred Jor- dan, entertainer of station WIBX, con- tributed to the pleasure of the evening by rendering a number of very good selections. Dean Wallace, proved himself a good chairman for the convention and we are all thankful to him for making it possible for the League members to again get to- gether this year. The Rochester fellows showed up in such large numbers that they obtained the convention for next year, and we are promised great things. Do your planning now fellows! —A. A. H.

Page 52

: ‘Sy nt The what Can t Transceiver from Page 37) -ortable mands can be reached a tly if the antenna and mewhat. eighs under 30 pounds. » Hartford and back to pecially hot and sultry fficulty than if carrying The tubes were in 1 everything was found ion altho once during ran violently into a con- king—but that isn’t Amateurs All Over the World prefer The ADVANCE RECTIFIER E Syne Rectifier actually does r ectifier claims to do. and quickly filtered. rements for heaviest duty. @ because of Advance Bakelite ention—always ready. in international transmitting although lewer in price, the ier is superior in quality. led bakelite six inches in rush holders with adjust- able gauze copper brushes. Convenient control handle. Disk, aluminum brush arm support and brush holders perfectly nsulated. Price complete with West- inghouse % H. P. Syn- chronous Motor .... $40 Rectifying wheel with complete brush assembly and mounting ring to fit your own motor .... $15 portation Charges in U.S.A. ELECTRIC COMPANY Second St., Les Angeles, Calif. Vard Leonard Ward Leonard The resistor units you need for VARION Raytheon and AmerTran Battery Eliminators Not affected by moisture, continuous service or over- load. Wire wound, vitreous enamelled (gloss like) the permanently reliable re- sistor. Non-inductive; zero temperature co-efficient. Com- pact; easy to use; hard to break. All sizes you need; seperate units; or handy kits of units, totalling 21,750 ohms in various resistance. Recomme nde d for all approved A. C. and D. C. eliminators 34 years manufacturing of resistance as specialists lectric Co. New York Mount Vernon, V eiZics PROVED BY THE AMATEURS TO BE THE BEST THING FOR THEIR POCKETBOOKS ~ WRITE FOR COMPLETE LIST OF MERCHANDISE THAT CAN poe len Ra nate ¢ yh ene ha SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 53

d« _

4 * —

—s

>— Wan pati / m “Ms ._ ae RB 7 . Convenience } *)

“> a ff}

i SJ —_ —— |

The Yaxley Automatic Power Control is undoubtedly one of the greatest advances in radio convenience, satisfaction and economy ever offered to you. The Control is for the set using a trickle charger and B elimi- nator or either. The Control automaticaily cuts off your trickle charger, cutting in the A battery and B eliminator when the switch or filament control of your set is turned on. When your set is turned off the B eliminator and A battery are cut off, cut- ting in the trickle charger again. Easily wired in series with the A battery (either polarity). Does not disturb the wiring of your set at all. HE

ic ee =~ ==

a3 Farm SS

<3

ey os a Ss 7

YY The Automatic Power Control is the result of 25 years experi- yy kag ence in the design and manufacture of relays. Voltage drop is WW wa negligible. Self-cleaning, silver wiping contacts. Handsome VW Nv enameled metal case, with Bakelite base. Ni Vat Vat No. 444 Automatic Power Control, Sefies type, for use with sets for tubes having a resistance equal to or greater than 6 U. V.—199 tubes. . . Each $6.00 No. 445 Automatic Power Control, Multiple type—for use with sets having tubes with a resistance lower than that equal to 6 U. V.—199 tubes. Each $5.00 ioe) hh) SSS) At your jobber or dealer. If he cannot supply you, send his name with Bj your order to \ f ° a | WW Yaxley Manufacturing Co.jq

[3 Dept. S, 9 South Clinton Street Chicago, IIl. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST | “x » ©)

BSE E

Page 54

Fulfill very FUN( gineer ever THE CALL The New Karas Equamatic Now Being Featured by Radio Broadcast extremely simple manner a 1! HIGHLY IMPORTANT our foremost radio en- striving to accomplish ivent of radio broadcasting. \TIC SYSTEM AUTOMATI- a CONTINUOUS MAKXI- MUM and an absolutely EQUAL TRANSFER OF ENERGY between primary and secondary inductances at all wave lengths by a coupling system unique to radio engineering practice —it also eliminates the overlapping of elec- trostatic and electromagnetic fields with their harmful, broadening and distorting effects five SigT sever equa gree aris MATI CONT de fir val the Sol sary the tubs In oper the te 7 FER aecnr trans! must couplir To rone—Great Volume QUAMATIC SYSTEM from n, clear, pure and powerful LUME to the usual six and rpness and SELECTIVITY terodyne—SENSITIVITY e circuit—and a PURITY stal detector Works CU TTATAAAT SYSTEM ittached ondensers in their condenser lary coils. ilso EN- TrED from second- to any the prim- their de- the prim- ire AUTO- tantly and ried—at a ng rate of turning of TOMATIC the AB- imount of ive length setting—neces- secondary coils EXACTLY ry required to cause the perate at their HIGHEST he Reason For It radio tubes CONSTANTLY ghest efficiency—just under —it is absolutely necessary ntain an EQUAL TRANS- +Y between primary and rder to maintain this equal every wave length setting [IFFERENT AND EXACT primaries and secondaries. r reception, every succes- SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST sively longer wave length requires a greater transfer of energy—therefore a corresponding- ly greater degree of coupling — than the pre ceding shorter wave length. The problem has been to provide this exact and constantly vary ing coupling by some simple mechanical means The EQUAMATIC SYSTEM solves this prob lem—does it POSITIVELY, SIMPLY and AU TOMATICALLY. and does not resort to ANY losser methods whatsoever. On account of th: extremely high efficiency of thi system the reception from home built five tube KARAS EQUAMATIC receiving set is as nearly perfect as radio re- ception can be with present day knowledge. Easy to Build A manual of complete dia- grams and instructions for building this five tube KARAS EQUAMATIC receiver in com- plete detail is included with each set of KARAS EQUA- MATIC coils (This manua will be sent separately upon receipt of 10c to anyone inter- ested). The placing of ever) part and every wire connection is clearly explained. Even though you may never before have built a set you can proceed without hesitation, confident of successfully constructing as cfficient a receiving set as can be made. To build this powerful, sweet toned, long range receiver, you will need the Karas parts listed on the accompanying coupon. Karas Micrometric Dial Because of the sharp tuning qualities of this set and the greater number of stations brought within range, Karas Micrometric Vernier Dials are ESSENTIAL to satisfac- tory operation. In these dials there is NO back-lash and none can ever develop. A light touch on the vernier knob and the dial moves INSTANTLY in either direction. Rough tuning is done with the larger knob, hairline work with the smaller. The vernier ratio is 63 to 1. In the 180 degree type, used on the KARAS EQUAMATIC, there are 200 divisions precisely placed, and marked with gold inlay. Overall diameter is 4%" and the knobs are usually large to give com- plete freedom from finger cramping when tuning for several hours at a stretch.

Page 55

as ns b lot

The EQUAMATIC RECEIVER develops greater SELECTIVITY without distortion or loss of the higher musical notes and their narmonies. All of the radio frequency cir- uits of this receiver are in PERFECT PALANCE at all wave lengths and once ad- usted, the EQUAMATIC RECEIVER cannot Vv

Five Tube Receiver Sensation Solves All Tuned R. F. Difficulties howl or disturb nearby sets. The life of both “A” and “B’” batteries is greatly lengthened because maximum effi- ciency can be obtained at lower filament volt- ages. This also lengthens the life of the tubes. The first tuning dial can be easily synchronized with the other two.

zuecs eP Cc $ ‘ J . = J +8 —- o i=) a ca < < ¥ : ~~ ? “ — i

¥ S3d5o0 4

“A +C -C +A -B 45 90 Karas Orthometric Condenser sharpness of tuning of KARAS EQUA- \TIC receiver is due in large part to the fficiency of the Karas Orthrometric condensers sed The radio experts, editors and experi- need fans choose these condensers for ANY ype of set they may be building. The shape of the plates gives straight frequency line tuning ind the 100 broadcast wave channels are equally spaced one division apart over a 100- division dial. Losses are extremely low because if brass tuning plates and end plates, soldered onnections, pig-tail and placing of the hard ibber support strips. Karas Equamatic Coils The other factor in sharp tuning is the EQUA- MATIC coils. Designed according to the very latest known FACTS for efficient handling of radio frequency currents, they pass an EQUAL ind MAXIMUM amount of energy from prim- iry to secondary at ALL wave lengths. The fields around secondaries are small and com- act, and show little tendency for interaction The adjustments possible in the coil mounting permit one to readily find a point of zero oupling between these secondaries. The primaries are sturdily built and mounted, and KARAS EQUAMATIC coils will not change characteristics from ordinary handling or tem- perature and humidity changes. Karas Harmonic Transformer Harmonic Transformer was the original high juality audio frequency transformer passing ill audible notes and harmonics nearly equally: it has been unsurpassed by any subsequent de- velopment at ANY ‘price. The wonderful re- production and powerful volume of the EQUA- MATIC RECEIVER is due largely to the use ff two of these transformers. With Karas Harmonics there is no muffling of sounds—no fuzZ on the edges of words—no thin, squeaky, distorted tones. Instead, every tone is clean- KARAS ELECTRIC CO. Manufacturing Plant: N. Rockwell St. Offices: 1077 Association Bldg., Chicago SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST cut, separated and distinct from every other tone. Natural! This even amplification of ALL audible fre- quencies is the result of scientific design. Larger coils containing many thousands of turns of wire give an unusually high induct- ance Karas coil construction results in a low distributed capacity insuring full amplification of high audio frequency harmonics and over- tones. Complete shielding prevents interac- tion and two of these units can be placed close together without distortion. The output of EQUAMATIC RECEIVER is a smooth flow from the loud speaker of rich, round, full, mellow tones such as you have never before heard from any radio—a surpris- ing volume of real music to which it is a de- lightful pleasure to listen. Order Through Dealer or Direct on This Coupon The Karas apparatus essential to the construc- tion of the five tube EQUAMATIC RECEIVER is carried by nearly every good radio parts dealer in most cities. Secure the parts from your dealer. If he is out of them, order direct from us using this coupon Send no money. Just hand the postman purchase price plus a few cents postage. *Licensed Under King Patents Pending sees 2S Se eS Se See eS eS eS eS SS eS eS eS eS ee ee eee ee Karas Electric Company, 1077 Association Building, Chicago, Illinois. Please send me 3 Equamatic Coils ($12), 3 Special Orthometric Condensers with extended shaft ($21), 3 Micrometric Dials ($10.50), 2 Harmonic Transformers ($14), 2 Karas Retard Coils ($2.00) and 3 Special Brackets ($0.70). I will pay the postman $60.20 plus postage upon delivery. It is understood that I have the privilege of returning any of this apparatus for full refund any time within 30 days if it does not prove entirely satisfactory. Name ‘ , ove cena Address eeesee tee eee eeeeses If you send cash with order we'll ship this apparatus postpaid.

Page 56

Push the Button—see!”’ Add protection Set You Build to the ~ A terling ANEL METER Here is the watch- guard of your batteries 1 tubes. Mount it on the panel, push the button and see _ the yndition of your bat- ries at a glance. Aids reception by proper filament adjustment and protects tubes. It sure dresses up the et—a battery and tube insurance policy besides! Sterling PANEL METERS ire made for all pur- ses and capacities. immeters, voltmeters, ltammeter, combina- voltmeters and milliammeters. ' With or without push- buttons. amateur PRICE $3.00 to $5.00 aa. Ask your dealer or write P as for folders THE STERLING MFG. CO. CLEVELAND OHIO Solid Mahogany Cabinet station selector highly selective thru new “‘accuminator” feature all-metal chassis shields units marvelous volume power tube adaptability. Other Crostey Ravios-/rom | tube Pur at $935 to R.FL.-9O Console et $90, PRICES SLIGHTLY HIGHER ON WEST COAST {} RADIO Write Dept 18 for Catalog CROSLEY RADIO CORPORATION CINCINNATI icensed Under Armstrong U. 5S. Patent No, 1, 113, 149 REAL BARGAINS: a — PERFECT: Sy with midtap watt, 10v wit sfo rmers, tting Com ensers, 10,000 Head milliameters ‘ondensers, OOOn 002 aa. neers 1000, wl na . Bakelite Nav r-Hammer Var e Grid Leaks, 25e ; r Switches mounted on 5 inch porcelair Fan Balanced Vernier mdensers 0 sed, Bakelite « ‘ 100; FLF ‘Batt ery arges ‘ mi ra $8.00 Tc-182 I PR-539 Filament AMR AD Circuit Bre ake t Radio Power Rhe Wrenches, 3 1 ik Holtzer- Cabs " Mareo Series- Parallel nt stomatic Templates, 25c; » Plugs, Se Maro DP % back mount mdensers 21-K 75 59 deposit on all Cc ‘O. D. Orders. All items aa 4 ey Post-paid. NEW ADDRESS STATE RADIO COMPANY 228 Weld St. Roslindale, Mass. 54 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 57

N E W GENERAL RADIO Apparatus for Amateurs Type 358 Amateur Wavemeter This instrument is particularly de- signed for amateur use in checking wavelengths. Consists of a _ coil mounting directly on the binding posts of a shielded condenser of 125 MMF capacity. A small lamp serves as a resonance indicator. The 358 wavemeter is supplied with 4 coils, a calibration chart and wooden carrying case. The coil ranges are as follows:— SE welbacee owe «wens 14 to 28 i A ee 26 to 56 | a BE a ecw ade wa ke 105 to 224 Wavemeter complete ....Price $22.00 Type 334-T and V Transmitting Condensers The types 334-T and V condensers are sim- ilar in appearance and assembly to all other Type 334 condensers except that they have double spacing for use in short wave trans- mitting on voltages up to 2000. They have metal end plates with shielded rotor. Plates of the rotor and stator groups are soldered to insure perfect electrical contact. The type 334 transmitting condensers are supplied with counter weights only. Type 334-T Capacity 100 M.M.F. Price $4.25 Type 334-V Capacity 50 M.M.F 3.75 ) 7) Quartz Plates for Amateurs Plates are available in the 150-170 meter band, giving second harmonics in the 80 meter and fourth harmonics in the 40 meter band. The only licensed plates available to : amateurs. Price $15.00 ; GENERAL RADIO CO., Cambridge, Mass. GENERAL RADIO INSTRUMENTS SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 58

HALCO MAIL ORDER SERVICE For Radio Transmitting Equipment ler Service places at the dis- Amateur a comprehensive and pply for modern Radio Trans- HALCO Service is directed ms buying from it are dealing that thoroughly understands eds. Whether you live right away, Halco will save TOBE TRANSMITTING CONDENSERS he 7 mitting Condensers are made and scrupulous attention to Pass, filter and high-voltage nsers. Each transmitting labeled with date of test Capacities are guaranteed are fitted with heavy brass condensers have heavy th petticoat insulators. Each heavy silver finished metal for transmitting plate- Prices t Type No. 2000 volts 2001 $2.50 2005 $4.00 2010 $4.75 2020 $8.00 Vacuum “Tipon” Leaks i tas Resistors,—capable of carryir ntinuously and recommended for tra eaks DE FOREST TRANSMITTING AND RECTIFYING TUBES De Forest Transmitting . $18.00 2,000-volts H. R. each $16.00 Tube— 100-milliamps $8.50 NEW DE ST D- q ) TRANSMITTING TUBE Maxin atts, maximum plate volt- age 7%, filament current 1.6 amy Price $9.00 ACME APPARATUS FOR CRYSTAL CONTROL SETS Acme transformers .. $16.00 Acme milliamp. Chokes $10 each Acme I $8 x Se ler on Acme Transmitting ALCO SHORT-WAVE SET new short-wave receiver of neatness of design and ive literature to anyone Send ue sheets on transmitting equipn An . me will be sent you promptly on receity k or money order. Specify clearly whether you want shipment by expr HALCO M AIL ORDER SERVICE 132 Hano Boston, Mass. Operate your radio set from the light socket with the new Balkite Combination YOUR RADIO DEALER Important Announcement For the New Ravtheon ABC Power Unit for the 199 Tube USE DONGAN Transformer No. 2561 Choke . . No. 1591 Be sure to get information on Dongan B- Power Parts for various types of filament and non-filament type tubes. Type H Super Audio Transformer The audio curve of this remarkable transformer is uni- form; even lower frequencies can pass without distortion. Not only will your set get exceptional volume but a new LIST $4.50 clarity of tone. Se your dealer or send us order direct ipecial Transformers for Trickle Chargers Dongan Electric Manufacturing Co. 2999-3001 Franklin St., Detroit, Mich. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 59

We give it to you after 3 years development Try the No. 130 RED Short Wave Receiving Kit Wavelength 10 to 206 Meters It’s a worthy companion to the other well-known REL products. Every part has been expressly selected and the entire design made from the actual experience of hundreds of ‘‘Hams.”’ SOME FEATURES Four inch rubber extension handles on both controls posi- tively eliminate body capacity Large visible scales engraved directly on panel.

Seven REL small size plug-in coils Coils are rugged and moistureproof. Special low capacity double spaced variable condensers Very easily assembled and wired Non-metallic friction vernier controls eliminate grinding Front panel completely assembled with condensers and noises. vernier controls. It’s a short wave sensation built by the pioneer short wave experts KIT PRICE $36.00 Ask your dealer or write us

< ANSMITTING INDUCTANCES Flatwise Wound on Glass Every Arctic or Tropical expedition now in

action is equipped with the REL induc- tances. They are the inductances which every efficient short wave station will eventually use. Type “L” — 40-80 and 150 meters Type “S” — 20 meters and lower Single units, with 3 clips Price $5.50 Double units, with 2 glass rods (as illustrated) Price $11.00 WAVEMETER With Neon Tube Iprdicator Wavelength range 17 to 550 meters. Individually calibrated with 1% accuracy. Plainand simple reading curve chart. Type “A”— Price $22.00 We manufacture a complete line of short wave equipment such as plug-in coils, RF choke coils, transmitting kits, etc. Special three and four coil Meissner inductances built for broad- casting stations. Write us your requirements. Radio Engineering Laboratories 27 Thames Street New York, N. Y.

SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 60

oe Two New FROST-RADIO UNITS for SET BUILDERS ACTUAL FROST-RADIO Type 890 Series Super Variable Resistance For f f volume, tone, regeneration, grid bias, « e far superior to wire wound types w exclusive advantages. The spring rm gives any degree of resistance selessly without wear. After a 46,- ir laboratory this unit showed no n in resistance. Element has large capacity and will not over-heat. 1 in dust-proof nickel plated case. ngle hole mounting and equipped ter knob. Type 880 (2 terminals) is 100,000, 200,000 and 500,000 ohm sizes } terminals) in 400, 2000, 50,000, 100 d 500,000 ohms. Both types, $1.25 each a FROST-RADIO Type 700 Metal frame Rheostats | rheostat that gives smooth and ac- both output (volume) and filament ake 25°, to 50° overloads without e contact arm glides over the wind- or yet always with positive contact. eostats are supplied in resistances 6, 7, 10, 20, 30, 50 and 75 ohms. nter knob and arranged for single and ha roller amoot 000 ¢t notice curren Entir Arra with supp ( SIZ} HERBERT H. FROST, Inc. 60 North La,Salle St. New } CHICAGO Los Angeles KITS-SETS ae Complete Transmitter In- stallations 5 to 1000 Watts Full Line of Transmitting Parts at Reduced Prices ewell, Weston, Thoradson, Acme, ee | Cardwell, Allen-Brad- ley, RCA, National, Ward-Leon- ard, REL, Faradon, General Radio, Aero, Pyrex, Tobe, Fleron, etc. 10-110 Meters 1 Stage A. F. A precision instrument designed and built for maximum efficiency on the short waves. Price Sasr"nr'= $38.00 of plug in coils . SEND for CATALOG Wm i} 77 CORTLANDT ST. « New York AMATEUR RADIO SPECIALTY @: SAY YOU SAW IT IN QS T=IT IDENTIFIES YOU AND HELPS QST 58

Page 61

Throughout the world, wherever electricity is used, this distinctive mark stands for dependability in Magnet Wire and Windings This trade mark on a spool of wire, on a coil in a Radio unit or any electrical apparatus, is a guarantee to the purchaser or user that there is no better made. Back of this mark is the world’s largest manufacturer of magnet wire and windings with ample resources to sup- port the guarantee of satisfaction which goes with every Dudlo product. DUDLO MANUFACTURING CORPORATION, FORT WAYNE, INDIANA Eastern Office and Warehouse Chicago Office 412 Chamber of Commerce Bldg., Western Office: 274 Brannan St. 160 North La Salle Street NEWARK, N. J. SAN FRANCISCO, CALIFORNIA CHICAGO, ILL. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 62

NEVER BEFORE! jrropaeyy [MAGNA ACLS at Bargain Prices A Cargo of S vadio

MAGNAVOX MAGNAVOX WER REPRODUCERS COMBINATION SETS <i for those who MAGNAVOX AUDIO (Amplifying Reproducers) very utmost Reproducer combine! the reproduction FREQUENCY with R3 power amplifier rams or CW By POWER compactiy mounted i f a VOLUME CON AMPLIFIERS crystallized ‘enamel case mmense volume or will cover the widest can be had at : operat a eee Brings that station just beyond A. sonee € apees —_ negligible Mn- of your ears in as loud as you desire “¥ : : ] . , Pe Can be used with new type power tubes room or large concert hal NAVOX POWER RE. Model Al; I-stage in heavy crystallized Model AIR; combinatior DUCER RS. List Price enameled metal List Price 27.50 reproducer and 1-stag ( OUR PRICE OUR PRICE $8.75. amplifier; lst $59.00 ’ Model AC2C; 2-stage in polished hardwood OUR PRICE $14.75. ‘AGNAVOX POWER RE- cabinet; list $55.00. OUR PRICE Model A2R; combinatior IDUCER R2. List Price $11.50. reproducer and 2-stace OUR PRICE Model AC3C; 3-stage in polished hardwood amplifier ; list $85.00 cabinet; list $75.. OUR PRICE $16.50. OUR PRICE $18.75. OTHER MAGNAVOX BATg_iAL AT 6O% OFF LIST PRICES mplifier; 2 stages extreme ampli- — phonograph, radio or telephone amplification. List 100.00 lifier; 3 stages extreme ampli- aT ATSE: as above, with 3 stages of amplification. Lis . a, ae Model TPIA; not for radio use; designed purely for electrica loudspeaking telephones and amplification of phonograph music. List $125.00. Model TRIR; Telephonograph combination designed for either livox: power amplifier designed for radio or phonograpl amplification [Ast $115.00 List OUR List OUR Price PRICE Price PRICE nsformers $12.20 $2.75 Cc. BR. L. Power Rheostat see se et 7.00 1.95 Mahogany Cabinet with panel 10.00 Signal KD Wavetrap _ 3.00 » 20 Signal Loose Coupler 7.70 ADIO SURPLUS CORPORATION 25° Watgen Stee

table for

A ocr S80clarten Raoio Amareuns or Sourmenn New Ene.ano "adio 22).:76 * int erested to *t the Daer ™gh use of your tat? e on. 7 for tren am itt ing a * *™d one Re) lant Peeulte heen it tur TUBES —a type for every radio need. ee Write for complete data Pres id ant sheet. DE BY THI Mi P C.E.Mflg.Co. Providence, R.1..U.S.A. Tubes o Longer Lite / SAY YOU SAW IT IN QST—IT IDENTIFIES YOU AND HELPS QST

Page 63

nd for this guide to Radio All of e and Radio quality. ir vast resources and radio experience been utilized to assemble for you in one gantic institution, the best and newest things in radio. e Randolph catalog is indeed the radio market place f the world—a masterpiece of merchandising that befits our use, the largest exclusive radio mail order house in the world, What Our Catalog Contains Over 2,000 items—from the most beautiful, fully equipped console model radio set, vn to the smallest part or tool for the set builder—kits, parts and supplies of every eivable type and style. All beautifully illustrated and interestingly described. { to give this book added value, we have included radio data that makes it an luable text book for every lover of today’s most fascinating and most wonderful evement—RADIO. Radio Sets this great radio market place you will | table model sets and console types h built-in loud speakers; the newest liphonic console sets; new Spanish I id consoles; five, six, seven, and eight tube sets, with three dial, two |, and the newest and most pular single simplified control. All sets are embled in beautiful, genuine mahog- ind walnut cabinets in a choice of utest types and designs 5 Tube sets as low as $24.90 Latest 1927 Models \ll Randolph sets are sold at amazingly ! No matter what kind of set matter how little you ¥ prices want—no nt to pay—you can select YOUR SET AT YOUR PRICE from the Randolph ‘Radio Kits Include the following well known cir- lits, designed and approved by the world's foremost radio engineers: Madi- son Moore Super; Victoreen Super; Silver Marshal Six; Sargent’s Infra- dyne; Remiler Super; Short Wave ; 9-in-Line Super; New Acme Reflex; Cockaday; Neutrodyne; Browning-Drake; all classes of radio frequency, Super Heterodyne and every other approved popular circuit. Radio Parts and Supplies The Randolph catalog also contains a most complete line of ““B’’ Battery Eliminators, including the famous Raytheon Eliminators; the latest type Loud Speakers, Cone Speakers, a complete line of quality ‘A’ power units —4in fact, you will find listed in this won- der book every part that goes into the construction of a radio set, or any acces- sories you desire, at prices that mean a substantial saving to you. Free Radio Service Everyone has need for radio service We employ Radio Engineers who have made Radio their life work. Their expert advice and helpful suggestions solve every radio problem of our customers. Our Guarantee Every article in our catalog is based on careful laboratory analyses and tests. We guarantee to back up every item in our catalog with our own as well as manufacturer's assur- ance of quality. YOU MUST HAVE THIS BOOK Space limitations here pozvens our telling you more about the Randolph Catalo “imply fill out and mail the coupon truly remar. or you may send a postal or letter—and this kable Radio book will come to you ABSOLUTELY FREE. MAIL THE COUPON NOW. z_ Randolph Radio Corporation 180 North Union Avenue, Dept. 91 CHICAGO, ILL. SAY YOU SAW IT IN QST—IT IDENTIFIES YOU AND HELPS QST Why We Save You Money Because we handle radio exclusively and sell a tremendous volume of everything in Radio, we can concentrate our buying power for the benefit of your customers. Volume purchase regulates prices. We command rock bottom prices from manufacturers, and in many cases we contract for entire factory output of exclusive products. You will benefit by our great volume of purchases and sales, by securing anything you may want in radio at a substantial saving. his Coupon Brings the Great RADIO Book FREE RANDOLPH RADIO CORPORATION 180 N. Union Ave., Dept. 91 Chicago, Illinois . ond me—free—your 84-page, 1927 Radio 300k. Name

Page 64

ALREADY The Standard of the Critical Amateur TES HORT WAVE RECEIVER A receiver designed by amateurs and constructed of the highest quality products such as Cardwell Condensers, RCA Audio Transformer Vernier Dials and the famous Extreme care in construction ar the parts insure efficient opera- of the entire tuning range of to 30,000 kilocycles) Specially {> SH( WAVE TR LITTER Bu andard “ parts H : ry high ' hokes. Aon » hot wir r inted panel. i rallel give operator complete con- Tuning condensers are high pecially priced at $39.50. TI RYSTAL-CONTROLLED TRANSMITTER ec A tter, the last word in the ama- t t complete with Piezo quartz your specifications. A pilot the panel tells you when you rk There is also a radiation n This transmitter is a counter par 1 by the Byrd Expedition. Spe- a $87.50. TES \MOUS PLUG-IN COILS Thes sced wound using 16 gauge wire nm aA form, a non-inflammable, non- “or mounted on grained bakelite using These coils can be used in any short r and are designed for use with short having capacity of 150 m. mfd. and r antenna and oscillation tuning respe ymplete set of five coils with - nt intenna coil. $12.00. Sepa 0, 40, 80 or 200 meters $2.50 TRA) ITTING EQUIPMENT CO. 19 Si Boston, Mass. AGAIN WE ANTICIPATE YOUR WANTS The New “WINDHAM” Universal Condenser Independent Removable 4%” shaft of desired length passes through a Hollow Spindle permitting clock or counter clock-wise rotation with all the other Windham features so well known to the trade. Single or double spaced 3 to 23 plates panel or test board mounting. Send for Catalog THE GOYER COMPANY, Willimantic, Ct. The Greatest Quality Buy Today The Hawley rechargeable “B” storage battery completely assembled and ready to run including electrolyte, 22% volt, $2.95; 45 volts, $5.25; 67% volts $7.65; 90 volts $10.00; 112% volts $12.50; 135 volts $14.75; 157% volts $16.80; 180 volts $19.20; 202% volts $21.60. Knock-down kits at still greater savings. All as- sembled batteries and kits contain the now recog- nized famous “Sur-Loc” connectors. Does not close up 15 to 30% of the elements as crimped on connectors do. With its patent pending grip it cannot come loose from the expansion and con- traction of the positive element which others are subject to. All told this means quiet, clearer reception— greater length of life per charge and economy in charging. Don't be satisfied with an- tiquated construction. Complete ready to run “B” storage battery charger, $2.75. This may be connected directly to battery. Also may be used as a trickle “A” bat- tery charger. Complete sample cell 30c prepaid All goods sold on understanding that they give satisfaction, and can be returned in 30 days for complete refund. Further guaranteed two years. Order direct—send no money—simply pay express- man cost on delivery. Or write for my free liter- ature— it’s free it will tell you what to expect and contains some mighty interesting matter. B. HAWLEY SMITH 31 Washington Ave. Danbury, Conn, SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 65

ALUMINUM Radio Shields The latest sensation in radio and used by Cockaday in his new LC-27. See our demonstration of the shields at work at the New York and Chicago Shows. Use the Coupon to Get Your Copy of “ALUMINUM RADIO SHIELDS’”’ A complete treatise of unusuat interest on the vital impor- tance of proper shielding by Cockaday, Free, and the Re- search Engineers of the Alum- inum Company of America. ALCOA A C ALUMINUM O A TRADE-MARK Only the genuine bears this mark Their unique “shielding” value is largely due to the conductivity of the virgin alu- minum used (highest mass conductivity known), their accurate and predetermined thickness, and their scientific design and precision manufacture. Developed by L. M. Cockaday and the Alu- minum Company of America to eliminate distortion due to feed-back, interference between units, and loss of energy due to absorption. Fully effective. Universally adaptable. Put them in your new set—your ingenuity will find effective applications—note the surprising results—look for them in the latest standard manufacturers’ models. ALUMINUM COMPANY OF AMERICA PITTSBURGH, PA. Aluminum Company of America, ee ee ee ee Room 2322, Oliver Building, | Pittsburgh, Pa. PR candctclekha ceva Snadme oh bane shenbekanenes see * Gentlemen: BN eccucikteene ce cule ouadea ce dubane senses 6 enka Please send me a complimentary copy of the booklet “Aluminum Radio What Circuit do you now use?........... ccc ccccccceccces Shields.” ee SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 66

OBR OAD, Say “Royalty” and Be Sure! <S New of = S 3 Ss SS

' ‘ \)\4 . | ae MODEL = Licensed by Technidyne Cor- | F(T poration under U. S. Patent a 1593685, July 27, 1926. Royalty Variable High Resistances nd indorsed by leading radio these superior features: ment not ex osed to any mechanical wire-wound strip insures positive always obtained at same point. under control in process of manu- onstant in use. noothly over entire range of re- than a single turn of the knob. » range for every purpose. Type E er types, $1 50.

Electrad Certified Jacks

Note these import- ant advantages: pring of phosphor bronze. Sterling oints. Insulation of hard rubber. r lugs, so placed that good connec- be made. Require less than 1” ertified and guaranteed electrically Open, 25c; closed, 35c; in ; closed, 50c.

mtrol of tone and use the Electrad hm compensator. For kup write 428 Broad- w York City.

SANGAM® Mica Condensers

Stromberg-Carlson RECEIVER gpa eo enthusiasts sat up and listened when the opportunity came to hear the Stromberg-Carlson receiver. That firm’s name means quality. Their set won a leading place immediately in a market that seemed over- crowded with good makes. No claims aremade of revolutionary ideas in new circuits, but every part is made with scientific precision. Sangamo Mica Condensers are used in the Stromberg-Carlson because they are perma: nently accurate. Sangamo condensers are solidly molded in bakelite. All edges are sealedtight;no moisture cancreepintochange thecapacity. Their accuracyis guaranteed to be within 10 percent and to remain unchanged. Distinctive in appearance, too; completely en- closed in velvet-smooth brown bakelite; all corners rounded to prevent chipping; rein- forcing ribs for mechanical ak Experiment with “world-beater” circuits if you will—but remember that accurate San- gamo Mica Condensers will improve the tone and range of any set. You can fit your set ex- actly—there are 35 capacities to choose from. Tried SANGAMO BY-PASS CONDENSERS? They stand the surges without breaking down. Sangamo Electric Company 6332-8 Springfield, Illinois RADIO DIVISION, 50 Church Street, New York SALES OFFICES—PRINCIPAL CITIES

SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 67

TROUBLE! iswhatyouWONT have, if you use Cardwells. No OSZ or QTAs— it always QSA. The 191E—.000075, or the 167E—.00015, - illustrated below, is F. B. for that Aero- ne o . Coil set, or any short wave tuner. er- de ut END your order today, Transmitting yn. and ask how we built our VARIABLE he short wave tuner. Capacity ¢ Breakdown nae Mmids \ ige Price 2 250 164-B 3000 $ 7.00 _ NOTE 440 147-B 3000 10.00 d For John Claytons “Univer- 80° 197-B 3000 = 8.50 a sal” Plug-in Receiver—The = aaa —~ —~ ed. Type 200-B lists at 8 Bucks. 297 166-B 7600 70.00 »n- 480 123-B 1 00 “ail The type C gives a modified 480* 156-B ieee 708 in- straight wavelength. 980 .137-B 1400 7.00 ieee FIXED , if pe Type “‘I Minids Price 250 501 3000 $ 4.50 . 167-C 191-E 75 $3.75 440 «502 3000 7.00 an- 168-C 167-E 150 4.00 966 503 3000 10.00 yne 170-C 168-E 250 4.25 250 504 5250 =: 15.00 ex- 171-C 169-E 350 4.75 *Has tw slated stators -Capa- aaa 172-C —-192-E 500 5.00 | ty of ea — ’ id Che Allen B. Cardwell Manufacturing Corporation 81 PROSPECT STREET BROOKLYN, N. ¥%: 4 Cond : 4 ondvensers “THE STANDARD OF COMPARISON” SQ@5T | SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST 65

Page 68

than high quality radio Cle-Ra Tone Sockets ~ - STRAIGHT LINE se FREQUENCY CONDENSERS No crowding of sta- tions. Adjustable turn- ing tension. Low loss characteristics give a sIly definite and distinct wded radio reception. Beau- ares tiful in appearance. Finished in dull silver Made in three sizes: .00025 Mfd., $5.00 00035 Mfd., 5.25 TER .0005 Mifd., 5.50 Senne $2.25 re RMERS PUSH TYPE CLE- wed So ioe SOCKETS Spring su EF Shock Absorbing. Stop Tube Noises. Greatest aid to non-noisy opera- tion. Contacts always clean. 75 cents each BRACKETS Supports sub-panel, with room underneath for accessories and wir- ing. Plain and adjust- able. Plain 70 cents per asteful pair; adjustable $1.25 each. per pair. »R RADIO HOOKUPS ew and original circuits. Hil rest office for full details. iin Electric Mfg. Co. 128 S. Sangamon St. ii » Chicago San Francisco: ‘ t 448 Bryant St. Canada by the Benjamin Electric vi aneada, Ltd., Toronto, Ontario | If t furnish you with Benjamin — send amount direct to our with his name and we will see y supplied. are of the same nigh of het. an give good es = ELITE DRILLED 4-IN-1 TUNER PARTS 12 jack stands, with dowel rod “legs” 3” high, drilled for General Radio jacks or undrilled; 3 grid coil plug-in holders with 2%” high dowel supports, drilled for G. R. plug-in spring tips, or un- drilled; 3 plate coil holders, drilled or undrilled; antenna and tickler hinged coil holders, drilled for plug-in tips, or undrilled. All plug-in strips, drilled or undrilled. All hard wood boiled in paraffin. 34 pieces in all. Gives chance for wide range of quick change experi- mentation. Assembled and Drilled set Assembled, but undrilled set 50% discount to transmitting A.R.R.L. members, if station call letters accom- pany order. Send postal money check to ELITE PATTERN WORKS 996 Maple St. Detroit, Mich. order, or personal COMPLETE WITH TUBE $25.00 George Electric Company “B POWER UNIT ‘ Delivers ag nes without a trace of a hum Stur lily cons ae ast as long as the best radio set A full wave rectifier tube is used, no filament to Ourn out Variable 4 control detector and amplifier ve tages 180 volt tap for power tubes Plenty of current for any set on the market Lower Price Higher Quality Positive Guarantee Sold direct from the factory to you, or thru our authorized representatives. Write for complete informatien. Shipped prepaid on receipt of $25.00, or C.O.D. for $25.00 plus postage GEORGE ELECTRIC COMPANY, 756 Carleton Ave., St. Paul, Mina: Agents and dealers wanted!!! Write for attractive agency proposition SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 69

This latest development meets the new demands for compact wiring and longer life—

Binding Posts are conveniently located for straight Type R-i4d—Stol . .. « « \$ > < — Type RIS} tLe eee es. or sub-panel wiring— The coil is vacaum impregnated — After assembly the shell is filled with special compound and the complete unit hermetically sealed. A tran sformer that sets a new standard. Tone Quality Is the Keynote No standards of quality canbe higherthan of radio reception. Each is designed and those we set for our own products; no in- made with the same care that goes into spection is more rigid ; no tests more severe the finest receiving sets. Each of these All-American Transformers These products have helped to create All- plays its part in determining the quality American leadership. New 1927 Radio Key Book Everybody who enjoys radio should read it— an interesting 48-page analysis of radio in terms anybody can at tia with complete con- structional details of the leading types of cir- cuits. Send roc in coin or stamps for your copy. Seve Tunen R. F. TRANSFORMER effec- tively amplifies all frequencies. | signed to match tube characteristics

cowenes, Comex vey tl-American Radio Corporation Raviaxo-TaI0 plerendusnedin # Tannsioonee 4223 Belmont Avenue + CHICAGO poe pn anced in one shell—a com- pact factory-buile unit for impedance coupled ampli- fication

RactanD.LyRic An audio Transformer, fa- mous for its perfect tone fee production—an outstanding product. Made with pains- taking thoroughness with out regard to Cost.

Power (Pusu-Putt) AMPLIFYING TRANS- FORMER, gives power am plification\ without dis- tortion where excessive volume is demanded

SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 70

rf Al ae “ 68 ) >- nal Are You Building Eliminator? ,e example of leading radio use the Bradleyohm-E and X\ for your voltage control. E is anew and enlarged Brad- ed expressly for B-Eliminator xtra long columns of scientifi- raphite discs insure perfect l, even after long usage. 4 is a solid molded resistor ated and accurately calibrated. ed without affecting its cali- ur dealer for Bradleyohm-E 4. for your B- Eliminator. ap: GOR Allen-Bradley Co. Milwaukee, Wis. i Ave. Tee TUBE wit All Types at Demand Prices HM THE SENSIBLE GUARANTEE All tubes look alike more or less—they are easily disquali- fied in handling. You are told “this” is better or “that” is better—Perhaps it is true—Perhaps not. Supertrons are Different You see a re-enforced interior construction. You see the most and best material. —Isolantite DEFINITE QUAL- expensive You see ITY. You are told SUPERTRON Public is the best—it’s truth—It’'s Visible Truth. Guaranteed by SX 201 A $2.00 Serial Number. Sv 198 " 333 SV i sma . SV 199 large 2.25 Supertron Co., Inc. SX 112 5.00 Hoboken, Jersey SX Hi Mu 3.00 Branch AIR... North Supertheon Half 4.00 Dearborn St., Chicago Supertheon Full 5.00 Export Dept.—220 Broad- In Canada slightly higher. way, New York City st SUPERTRON Faint Pi LSNAESE FF COLI AIA T © Ft What densers but mfd. Why not try Blocking Condensers? You have always used .002 mfd. who knows that it for short wav -000036 mfd. circuit. Our different capacities between so you can select the best size for your set. General Electric Gridleaks Utility Radio Co., 80 Leslie St., Size Grid and Plate for blocking con- is the best size es? The builders of KFUH believe better for their tuned grid 'n plate UC 1015 condenser gives eleven 0002 mfd. and .001 them ? Price $1.25 postpaid Brand new enameled porcelain G. E. Gridleaks in 5000 ohm and 10,000 on sizes for all tubes. Size 1” x 6” PRICES, se0e ohm "$1.25, 000 ohm $1.75, Postpaid. East Orange, N. J- | 10,- on-Bradley Perfect Radio Devices . KIMLEY ELECTRIC COMPANY 2664 Main St., Agents—Dealers Our “UNIVERSAL” “B”’ Device will satisfy vour requirements for superior reception. Thousands in Service. Two year guarantee. Price $22.50. Here’s a business builder Our proposition wil! please you. Write! Buffalo, New York SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 71

Formica For The Amateur Formica panels for well known kits Veri Chromed in gold on high gloss Formica are sold by leading dealers and jobbers: Bremer Tully Counter- phase; Browning Drake National; General Radio Four Tube Universal; LC 26 Cockaday; Victoreen Superheterodyne; Best’s Superheterodyne; Madison Moore Superheterodyne; Camfield Duoformer; Aerodyne 5 Tube; St. James 8 Tube; Karas Equamatic, front and sub-panel; Infradyne, 7x30 and 7x28. THE FORMICA INSULATION COMPANY 4620 Spring Grove Avenue . . Cincinnati, Ohio ORMICA Made from Anhydrous Bakelite Resins SHEETS TUBES RODS SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST 69 Formica has a Complete Service on Insulating Material and Parts for Radio Mamufacturers Hear the Formica Or- r ‘ chestra Tues- day, 9 to 10 Over WLW.

Page 72

Po ro-Plug Improves Your Loud Sp. s Tone Almost Beyond Belief Cha rasps and other extr from your loud tic; broadensthe t ass and high t t e quality of nud speaker. M loud speaker g into sleeve pr without jacks, sts — simple, ea your set to- da ack guarantee. : Price $1.50 Poly n't Be Tugged 1 Loose! T rd criss-crosses thr sive tension s loosen that P ng OFT jarring wor i! Auto- mat nstrating the fact y the best Poly Bakelite 50c EZ! bien. . Se Move Louds;: To An Room! EZ Extension Connector Connector only 35c With 20 ft. Cord $1.25 With 25 ft. Cord 1.50 With 35 ft. Cord 1.7% With 50 ft. Cord 2.0@ c and power unit manufacturers sp r ts as standard equipment. I At good dealers everywhere. sstrated descriptions of all Sent FREE on request. Polymet Manufacturing Corporation 599 ay ° New York City . ufacturers of Radio Essentials’” POLYMET - PRODUCTS | | | *Trade-Mark Reg. U.S. Pat. Office Reaching Out with PYREX Insulators YREX* Insulators help your trans- mitting set reach out to greater distances. The use of PYREX Insula- tors in short wave transmitters and re- ceivers eliminates leakage and eddy losses. The country’s greatest power stations, The Byrd Polar Expedition, the Navy, the Coast Guard and Air Mail Service, all have depended on PYREX Insulators for greatest effi- ciency. Select your equipment from the following list of PYREX Insulators PYREX—Low Power Transmitting Antenna Insulator, 7%” long ... ign neath nee 1.50 PYREX—Medium Power Transmitting Antenna Insulator, 124%” long ; 3.50 PYREX—High Power Broadcasting Station Antenna Insulator, 30” long .......... 22.50 PYREX—Stand-off Insulator, Height 3” overall nin the eehe ce Hbie Se PYREX—Stand-off Insulator, Height 7” NEE. oc daikas eves c00se0eees iaeutndieens oe PYREX—Stand-off Insulator, Height 12” ORE OP eee ae PYREX—Lead-in Insulator, Navy Standard Bowl Type, for voltages up to 10,000 1.50. Complete with metal fittings. .....15.00 CORNING GLASS WORKS Industrial and Equi ment Division Corning, N. _ Git ACME) SL _ CELATSITE WIRE —a tinned, copper bus bar wire with non- inflammable “spaghetti’’ covering, for hook-ups. 5 colors; 30-inch lengths. Flexible Celatsite Flexible, stranded wire for point- to-point and sub-panel wiring. Non-inflammable ‘“spaghetti”’ covering. In black, yellow, green, red and brown; a color for each circuit. Put upin 25-ft. coils. Send for Complete Acme Wire Products Folder ACME WIRE CO., DEPT. S, NEW HAVEN, CONN, , “GAGE ANTENNA SPREADER’ DIAMETER? IN. Patented Sept, 8th, 1925 When erecting your Hertz antenna, w') not feed into a 4, 6 or 8 wire cage at tenna-counterpoise? By us these Spreaders canbe done very quickly and efficiently Circular upon request Price: $5.00 per dus n $2.75 for a half dozen. immediate delivery. | a the postage CHARLES F. JACOBS (RADIO 2E™) 279 Park Piace Brooklyn, N.Y SA¥ YOU SAW IT IN QST—IT IDENTIFIES YOU AND HEL#PS QST

Page 73

Principle | not~just another Charger HE ELKON TRICKLE CHARGER is as different from earlier attempts at “A” battery charging as Radio Signalling is from the signal fires of the Indians. All the former expedients necessary to secure current rectification _ are done away with. Two small discs, of dissimilar substances, in pairs, re- place all the water, the acids, the alkalis, tubes and oscillating devices hitherto resorted to. And they not only rectify in a positive manner, but do so without interference, without noise, without heat, and without attention. | The Elkon Trickle Charger will operate in any Position. Short circuiting cannot harm it. It cannot overcharge for it tapers automatically from 0.7 amps to practically zero. It is full wave. Install it....setit.... forgetit.... Your “A’’ battery charging becomes a perfunctory matter, entirely automatic and dependable, and your time is freed for more important work. You need one. Operates from 105- 25-40 cycles also 120v.,50-60cycles, {s y §-°° complete available ata slight- , direct from A. C. with switch ly higher price = > aa _— al ae —— be of P. R. Matlo & Co. Inc. —_ - = CZ Weehawken, N. J. 9 Sole licensees under patents pending to Samuel Ruben ELKON TRICKLE CHARGER T SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 74

635 Short Wave Kit The type 635 Short Wave Receiver Kit contains the carefully designed and matched essentials for a real short wave set. Its range is 18 to 150 meters. The kit contains a set of four plug-in- coils, one coil socket, one coupling condenser and two 140 mmf. condensers. .These parts are all carefully designed for operation together. With the four coils supplied, the amateur bands fall well to the center of the tuning scale. “Dead spots” at which the receiver will not os- cillate are ‘otally eliminated, The antenna con- denser allows coupling adiustment ta suit indi- vidual conditions. Price $23.00 at Your Dealers Silver-Marshall, Inc. 858 West Jackson Blvd. Chicago, U, S. A. QST! OSCILLATING CRYSTALS Kine StON ATTENTION OWNERS OF AMATEUR STATIONS Now is the time to change your transmitter over to crystal control For 40 or 80 meter work, we recommend either an n 4 40 or 80 meter crystal No need of using higher wave-length B BAT q p R y E L | M | N AT 0 crystals to work on the low wave bands Prices for grind- th ing crystals in e various amateur bands as follows:— : " 150-200 meter band ... eee . $20.00. Do av iblesome, expensive, z3- 85 meter band i aanltolntpetotape : $30.00. bulky vitn acid, stained car- The above prices are for grinding a crystal so as to oscillate rets =+ when you want it somewhere in its respective band Frequency stated accurate I ’ 7 tw a to better than ne-tenth of 1% most KINGSTON B bat- ATTENTION OWNERS OF BROADCAST STATIONS ween F i force , P , e will grind a crystal for you, ground to your assigned tery c.. : a oo nee frecganey migcurate to BETTER than a tent! c 14 for ouble rim handso y 50.00 is crystal is so ground so as to be capable for tr . ; ae l { y use in POWER circuita Prompt deliveries ‘ 7 finish« ind nickel, and guar- Crystals ground to any frequency between 50 and 10,000 ante¢ ; remove the battery Kilo-cycles Let us quote on your requirements apeat Bene lalivea -leare ‘ THE CRYSTAL SPECIALISTS nuisa leliver clearer tone hn teks Mectin Dereon and ir ime. Three different Box 86 Dept. E Mount Rainier, Maryland voltag: at same time, each tap ad a wide range, mak- ing ar ltage from 5 to 150 possibl nizing perfectly with RADIO OPERATORS WANTED eee | The Raytheon tube is THE EASTERN RADIO INSTITUTE can train you usec a quickly and thoroughly because: MODERN AND EFFICIENT METHODS THOROUGH INSTRUCTION under staff of LICENSED COMMERCIAL OPERATORS r Dealer’s Prics omplete $ 35-00 MODERN APPARATUS including SHORT WAVE with Raytheon tube TRANSMITTER FOURTEEN years a RADIO SCHOOL KOKOMO ELECTRIC COMPANY THE OLDEST, LARGEST and MOST SUCCESSFUL C > NDE \MO. INDIANA school in New aay RS DED BY THE 4 Day or Evening Classes Start Every Monday. SPECIAL CODE CLASSES Write for Illustrated Prospectus EASTERN RADIO INSTITUTE 899 BOYLSTON STREET BOSTON, MASS. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 75

HEN Glenn H. Browning and Francis H. Drake designed a radio frequency transformer which for the first time gave satisfactory amplification at the broadcast fre- quencies, they earned the world-wide good will of the amateur fraternity. Recognized as the radio leader of his community, the amateur’s rec- tremendous ommendation carries weight in the selection of his neighbor’s receiver. This recommendation is the radio dealer’s lead- ing asset in promoting the sale of Browning- Drake Receivers. Browning-Drake produces only one | EG Wun x SS ~ » A N \N SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST The Browning-Drake Five | List price $95 | model, built complete at its Brighton laboratories. Fairly priced, and handled only by the highest grade jobbers, the Browning-Drake Re- ceiver has never been cut, and no dealer has ever lost money on Browning-Drake. Inquiries from amateurs, whether personally interested in broadcast reception or not, are always wel- come and receive prompt attention. Jobbers and dealers with an eye for the radio future should get our proposition. Write the Browning- Drake Corporation, Brighton, Mass. | WANA NI, ~~ 73

Page 76

CELLCHEK An « f determining the condi- tior f ’ ery cells Made with a resist bstantial load in excess of that | for by Radio tube fila- ment ‘ The meter although calibrate vided with a simple scale readable howing when the battery is in f r condition or needs im- med} Ove thdrawing electrolyte for testing nger of damage to rugs, floor Test ies too THE HOYT CELLCHEK, Price $2.50 Send ue “HOYT METERS for RADIO nany new additions to the HOYT uding the new HOYT Type 17 Met » adjuster and the HOYT Direct-} eater, which gives char- ecterist Radio tubes without cal- BURTON-ROGERS CO. BOSTON, MASS. Vatronal Distributors IMPROVE! Your Radio Reception By Using \ strong hand-turned rock-maple pole which gives a quick, convenient method of erecting a dependable antenna 5 or 8 foot lengths, will fit any roof single or multiple wire antennas. Will carry thé heaviest sleet covered antenna in strong wind withou weakening Neat in appearance. Can be set up dismantied without danger of causing leaks in roof Complete set includes three steel guy rods \ inch | diameter, adjustable pulley neb irons, roof socket anchor pins and full instructions, price 5 foot mast each $3.50, 8 foot mast, each $4.25. Ask you dealer The WAVB-X « Condessing Antenna is an seria! that can be quick|ly erected of wail, chimneyor roof, anywhere & foot square is available. Grand se one roof without interference. Provides — tuning. increases Twelve durabie highly conductive, non corrosive, cast aluminum feelers reach out in yy Perfectly insulated to prevent lowses, Only one er ient to erect, only a hammer and a screw driver needed, with 8 foot aie. ready to install with a! accessories and full instructions $12.50. No. 3 for ose wall or ci im- Dey mounting $12 DEALERS There's a big demand every where for REDI-MAST a WAVE-X-—write for our dealer sales plan now! ZINKB COMPANY Chicago, Illinois PRESSED METAL MFG. COMPANY Waukesha, Wis. Broadcasting Station Accessories Push-Pull Transformers for 7% w. 50 3. and 250 w. speech input circuits. Microphone Mixing and Amplifier Out- put Transformers. A complete line of retards and transformers for amplifier circuits. Variable and Fixed Air Condensers of any size required. High voltage Plate Generators up to 30 . Ww. Broadcast Station erecting, rebuilding and general engineering. J.E. Jenkins & S. E. Adair, Engrs., 1500 No. Dearborn Parkway, Chicago MASS. RADIO SCHOOL 18 Boylston St., Boston, Mass. FALL TERM SEPT. 13 Send for free Catalog BUILD THE NEW, SHIELDED AMammar lund ROBERTS Hi: RECEIVER Send 25¢ for Construction Book Hammarlund-Roberts, 1182-H, Broadway, New York SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 77

Sup a PERFORMANCE/ After severe labora- tory tests, seeking the ultimate in mu- sical performance, these receiving set manufacturers have all chosen Thordar- son amplifying many others% ‘ransformers as the Jol low the lead of the leaders - Build or replace with 3442-A THORDARSON O AMPLIFYING TRANSF THORDARSON ON ELECTRIC MANUFACTURING CO. Transformer Special WORLDS OLDEST AND LARGEST EXCLUSIVE TI TRANSFORMER MAKERS uron and Kingsbury Streets. — Chicago,lil. USA. SAY YOU SAW IT IN QST—IT IDENTIFIES YOU AND HELPS QST 75

Page 78

NATIONAL TRANSMITTING VARIABLE CONDENSERS 00023, 23 plate, 3/16 inch spacing ...... $11.50 00045, 43 plate, 3/16 inch spacing .. $16.50 The [ONAL Transmitting inch, and 3/8 inch apart for high volt- Varia nsers have seen con- age work. Because of the limited de- stant factory service in the mand for these condensers, your hands RL members for many dealer may not have them in stock. We years. are used and approved are glad to accept orders for direct by Lie |. H. Schnell, Don C. shipment when accompanied by re- Wallac« \. Hebert, Gerald M. mittance in full, including cost of Best, | Hatry, Lieut. Lowell transportation. Be sure you get Coope lates are spaced 3/16 genuine NATIONAL products. Send For Bulletin 110-Q N A T | OS Fa & SS 2 .@eFr 2 8 V¥ a; 2 ew Engineers i wufacturers W. A. Ready, President Cambridge, Mass. THANK | BUGGY” RIDE. Fifty years ago the buggy » Now it is the automobile, the air- plane ar Tt KET KEYS. The han LICKET Key is still riding in a buggy. p FISTS. NO GLASS ARMS. s uph"’—what more can you ask? anyone can read; 1 you need? Prices. I Portable CRICKET Bras rid Brass contact, $10.25 prepaid. Silver i Silver contact, $11.75 prepaid ea — © =o } = “=x Listen te SEH KET wag yr beater yeaa PORTABLE CRICKET Ly F. F. Mace 4 32 Sunset Ave., Dallas, Texas (For that portable set) —_ > . neta a a THE WORLD’S BEST 20 back copies for $3.50—or in ie one eaanth sath ieee te dividual copies 25c each—orders referenc .. Now used by hun- filled as received—remarkable — Se Rev or Edition of value - “Radio Th d0 tino”’ 1924—-November and December adio iheory an perating 1925—all except January er (the 1925 series is an ex- con, ae cellent set too) $3.50 1926—January to July, inclusive Postage pa f the world. Get it of (excellent issues too) any book dé heck, express, or money order direct QST LOOMIS PUBLISHING COMPANY , Det. T0068 } Washington, D. C. 1711 Park St., Hartford, Conn. 76 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 79

0A Master Product ! Designed for Reliable Long Distance Communication on 1 Meter to 200 Meters see INPUT RATING 150 WATTS Plate Voltages 500-3000 Plate Currents 40-50 MA. Fil. Voltage 10 Fil. Current 2.35A ~ese Sold and Shipped Direct Upon Receipt of Money Order Price, $18.00 Parcel Post Prepaid TRANSMITIING TUBE a HR RECTIFIERS Fil. Voltage Plate Mill. Amps 200 fie Fil. Amperes . a Voltage Drop at 250° MA Plate Voltage A.C. 2000 PRICE $16.00 *Will operate 4 H Tubes 139 Franklin St., DE FOREST RADIO CO., Jersey City, N. J. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST 77

Page 80

Pacent Universal Cushion Socket No. 83 \ Real Cushion Socket is a new Pacent eering achieve- agenuine Bakelit: , with real spring suspensl The si phosphor bronze solder t: | spring members are all one piece. This unique s] design insures pos- itive nm rophonic cushion effect. Uniqu tube-pr: reliable, | e, contact seats the roperly and effects contact. your dealers or lirect for further s on these sockets Radio Inquir write partict and « r Pacent ssentials. Price 650 PACENT ELECTRIC CO., Inc. 91 SEVENTI WU NEW YORK CITY Cana ensed Manufacturer : White I ed, Hamilton, Ont. Manufacturin; r Great Britain and Ireland: Igra Co., Led., London rd, England Pacent RADIO ESSENTIALS FOR ALL PURPOSES There are Over 200 Standard Types Of aradon CONDENSERS on which Immediate Deliveries can be made Devoting its resources since 1907 to specialized research and development in the Radio field and to the improvement, production and application of electrostatic condensers, the Wireless Specialty Apparatus Company continues to supply equip- ment to efficiently take care of operating require- ments. Not until a product has successfully passed exacting final electrical and mechanical! tests is it considered worthy of the “FARADON” trade mark and ready for commercial use Dependable, efficient products are the result. U. S. Army, U. S. Navy, Bureau of Standards, General Electric Co., Radio Corp. of America, Tropical Radio Telegraph Co., Westinghouse Elec- tric & Mfg. Co., and Western Electric Co., are some of the large Faradon users Advise for what purpose condenser equipment is wanted and literature describing such types will be forwarded promptly. TO SET MANUFACTURERS We will promptly quote on your condenser spec- ifications. State capacities, flash test, and oper- ating voltage requirements and space available. WIRELESS SPECIALTY APPARATUS COMPANY Jamaica Plain Est. 1907 Boston Mass., U.S.A \ / FLXED RESISTORS ARE WARRANTED— Absolutely Noiseless Permanently Accurate Dependable / Write us! ARTHUR H. LYNCH, Inc. Manufacturers of Radio Devices Fisk Bldg., Broadway & 57th Street New York, N.Y. SESSA SES SESSA Learn the Code at Home With the Omnigraph Morse and Wireless—taught at home in half usual time and at trifling cost. Omnigraph Automatic Trans- mitter will send, on Sounder or Buz- ser, unlimited messages, any speed. just as expert operator would. Adopted by U. 8. Govt. and used by leading Universities, Colleges, Tech- nical and Telegraph Schools through- out U. S. CO free. Omnigraph Mtg. Co. 13M Hudson St., New York 78 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 81

The UTMOST in dSube ¢i ficiency Rare Tone Quality and Extreme Stability feature this new 5- tube instrument. Heavy copper cans completely encase each coil, preventing any possibility of local pick-up on the coils them- selves,and permitting total neutralization of each radio frequency stage—with consequent freedom from ‘distortion. An emergency vernier adjustment—which permits a compensat- ing movement of the third condenser—supplements the two regu- lar tuning controls and makes possible the elimination of inter- ference caused by two stations of but slightly different wave lengths. Either house current, batteries or a combination of both may be utilized for operating power—all controllable by the battery switch when used with a Stromberg-Carlson Power Switching Relay. For audio amplification apparatus, either internal amplifica- tion with UX-112 tubes or UX-171 tubes may be chosen, or where auditorium volume is desired, external amplification with a super-power amplifier can be used. 5-TUBE RECEIVER PRICES Mo. BA Cone Speaker Console type, shown above, _ Also made in table model, Tip-Top Table type. Violin No. 502 Receiver, Art Console, No. 501 Receiver, Treasure Chest, ’ Tol Riu+, > . s ~ . wood soundboard finished a. ky 5-tube, , = Solid Mahogany. 5-tube, coils i. a , Pedestal shielded, dual control, equipped wi hielded, dual ¢ ss li _— an I — voltmeter, space for all operating - ™ ~~ ual control, equipped with SO LIC anoga fe . . voitmeter. onse: u » equipment . ; a Lic — hg wut Fast of Rockies > — of Rockies 271527 and. 1271529. Rockies and West ockies and West Ones ale Gea” Price $325 $355 Price $180.00 $192.50 ‘ ts pending : ae : : er paten pe (Receiver price is less accessories) (Receiver price is less accessories) The Stromberg-Carlson Telephone Mfg. Co., Rochester, N. Y. tromlbers-Carl Makers of voice transmission and voice reception apparatus for more than 30 years SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST 79

Page 82

American fransformer (ompany > The AmerTran DeLuxe in two types for $10 each Ist and 2nd stages tly among recent de- tter reproduction, the an entirely new stand- ation rmer which reproduces mass drum, the roll of lowest tones of the « realism, at no sacri- nds within the audible on with the new cone these transformers r the entire audible absolute perfection is ear is unable to note made in two types and should be used Transformer and the t of over twenty-five former building. They mits available for the r supply of the better unsformer has filament he rectifying tube and current, after rectifi- of the set. ne free booklet “Im- plifier” and other data ter radio. AMERICAN TRANSFORMER CO. 178 Emmet Street Newark, N. J. A lucta are Sold Only at AmerTran Dealers Transformer Builders for ° $ Over Twenty-Five Years All That’s Best in Radio Eagle Owners have the satis- faction of knowing they have the best Radio Receiver made, regardless of cost. Ask Your Dealer EAGLE RADIO COMPANY 16 Boyden Place Newark, N. J. 1000 volts. 2000 Volts 1.50 2.50 2% 2.00 A 3.00 1.00 1. 4.00 4.75 2. 6.00 8.00 The 1000-volt condensers are fitted with heavy brass binding posts; the 2000-volt condensers have heavy brass binding posts with petticoat insulators. Each condenser is tested and the capacities guar- anteed within 5% of ratings. The 2 mfds. 1000-volt condensers are especially adapted for and used in the Amertran Power Packs. Sent Prepaid Upon Receipt of Price. M. B.S. SALES CO., Dept. D. 27 School St, Boston, Mass. Parts and suppiles for Edison element storage ‘‘B"’ bat- teries in stock for immediate delivery. Perfect elements. Electrically weided on strip connectors. Type “‘A’’, Se per pair. Type 3-G. 1500 M. A. Gea Type 5-G 3000 M. A. Se. %4x6” flat bettom jars, 30. ° nickel wire, te per ft. Ne. 18, . Separators, 4c per doz. Potassium Hydroxide and Lithium for making 5 Ibs. Edison solution, 850. 100 volt battery in steel case, complete - ag A ie $12.50. 140 volt, $17.00. Send for com- plete fist. J. ZIED, 904 N. Sth ST., PHILA., PA. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 83

EE that rubber jacket about to descend Os on the “hewler’’? Once this “howl absorber”’ slips over a tube the howl stops for once and all! No more ruined reception. The thick shield of live rubber effectually soaks up the trouble-making vibration. You can get it for every size tube! Just ask your dealer, or write. National “Distributors for the U. S. A. SPARTAN ELECTRIC CORPORATION 350 West 34th Street, New York City Manufactured in the U.S. A. by SCIENTIFIC PRODUCTS CANADA, LTD. Ask for McDonald Howl Arrester PRICE 75 CENTS EACH SHORT WAVE COILS Pa pee AEROVOX COMPLETE SET-5 Coils and 2-Coil Mount- $5.00 ing. 10 to 235 mtrs. - - - ° ° once Antenna Coil and attach $1.00 additi ! " your Ham Dealer .—or direct Other Good Short Wave Parts. Send for List s 4 DIO TOR 3335 334 Poy § = —— ‘seattte, Wash. SAY YOU JAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QsT RAYTHEO? CONDENSER BLOCKS

Page 84

THE SUPER SYNC The Synchronous Rectifier That Can Be Filtered The super has an eight inch commutator which is turned at a synchronous speed by a i H. P. 1800 R. P. M. Synchronous motor. The brushes are made of copper leaf and is now foreign ving the results as country. stations e Super ted with nat they each be- in our Foster t after iper Syne irry on re- com- 0-A3E, reliabili- run on a smooth surface the entire circumference of the commutator. There are no air gaps in this type disk thus insuring perfect contact between brush and commutator at all times. PAT. PENDING PRICE $75.00 F. 0. B. ST. LOUIS ) ELECTRIC CO., 5241 Botanical Ave., St. Louis, Mo. GENUINE Kenotron Rectifying Tubes A) Model UV-216 THESE Tubes are the GENUINE R.C.A. Kenotron Rectifying tubes. Filament voltage 714 volts and will safely stand A.C. input of 750 volts. Four of these tubes will run a 50 watter. These Rectifying tubes will pass plenty of current and voltage for your TRANSMITTER and also are very efficient for use in “B’” ELIMINATORS. NDARD BASE. EVERY TUBE BRAND NEW AND PACKED IN ORIGINAL CARTONS. List price $7.50 ea.—Extra Special $1.85 ea. AMERICAN SALES CO., 21 Warren Street, N. Y. C. Save 20 to 50%>, —s Bradleyleak @ prompt and careful Tr; , LOW! ENGR PANEI tra CORT 79 CORTLAN tention, immediate de- irteous service. RICES for DRILLED, ) or DECORATED 8 PANELS for the popular r short wave receivers or ecially cut, drilled and UR OWN SPECIFICATION, ORDER now! : \NDT PANEL ENGRAVING CO. REET, NEW YORK 4 2 ) ( wm, grid condenser (0.00025) is Provides a noiseless range of grid leak resistance from 4 to 10 megohms. Assures most effective grid leak resistance value for all tubes. Small separate. Metal parts nickel plated. One hole mounting. Cee ee eR ERE RE REESE EEE SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPs QsT

Page 85

MISTER AMATEUR VALUES ABSOLUTELY! WE HAVE THE MOST ASTOUNDING Factory rebuilt for 3000 volts to —— y a 1000 cycle tone withou TUBES and pass 60 mils Half wave type 95c Full wave type $1.25 RADIO CORPORATION RCA UC-1803 FARADON CONDENSER Capacity ..00025 Mfd. 10,000 volt breakdown List $5.00 SPECIALLY PRICED AT 95c $2.95 “drags _ King-Carcdwell Dual Cond r LIST P me E $7.00 OUR PRICE S$! 60 15-15 pl $1.95 Used i grid-meter drive CARDWELL CONDENSERS RCA AUDIO TRANS- King-Cardwell 41 plate FORMER UV7i2 Easily doubled spaced for trans Highly recommended mitting 95e. by Kruse for short wave King-Cardwell 11 plate aud amplificasio For short wave receivers 95c. This peaked aucdica King-Cardwell Transmitting ransformer was mode Rectifying tubes will stand 500 volts Poi Can be easily converted for short GENUINE An excellent tube for the short transmitter 95e wave Has plate, filament, and rectifying RADIO SURPLUS CORPORATION nae RCA OSCILLATION TRANS- FORMER, UL 1008 wave transmission by cutting out a turn. Works perfect for a Hartley circuit LIST PRICE $11.00 Our Price $7.50 RCA POWER TRANSFORMER UPI0I6 201 tube windings Pilate side 3000 volts | with midtap for 1500 volts Filament and rectifying tube wi lings 10.5 voltg wit midtap at 5.2 ta For low power tubes a rheostat in the primary circuit gives complete contro! of output. $28.50 Our Price, $11.50 RCA TF TRANSMITTER, 20 WATT This transmitter designed for CW or voice and it can be easily converted for operation on 40 or 80 meters. Housed in a beauti- ful cabinet with meter on panel. SPECIAL $75.00 The New Hammarlund “MIDLINE” Condenser Will Improve Your Radio It gives greater separation of low-wave stations His MIDLINE F reti than the old “SLC” type and greater separation on the high waves than the more recent “SLF” type. In addition to the many famous features in pre- vious Hammarlund models, the “MIDLINE” has ball and cone bearings and a full-floating rotor shaft. This shaft may be removed and a longer shaft inserted for use in any scheme of multiple condenser operation. Made in all standard capacities—single, dual, and triple. Also for short-wave work. Sold by the better dealers. HAMMARLUND MANUFACTURING CO. 424-438 W. 33rd Street, New York For Better Radio ammarlund PRECISION PRODUCTS SAY YOU SAW IT IN QST—IT IDENTIFIES YOU AND HELPS QST

Page 86

P recision/ precision of a high or- i, s into the manufacture of Powe Metallized Resis- t eloped by two leading ul professors. Noiseless al ranteed to maintain, un- de nditions, the resistance m: n its label. . hms $1.00 \ 24 meg 75 .50 es gy RESISTOR MOUNTING Made of moulded insula- yn of exceptionally high resistance. Best quality tension-spring, bronze ontacts. Only upright mounting made. 44 | Single Mounting............50¢ C For Condenser.....secscesss 65c | §: METALLIZED RESISTORS INTERNATIONAL RESISTANCE CO., Dept. | Perry Bldg.. Philadelphia, Pa. aml a CARTER | “HI-OHM” Volume Control and Filament Switch 500,000 ohm 300,000 200,000 100,000 §0,000 10,000 Resistances Complete with arrow $2.50 pointed knob. Simplifies the operation of the set and eliminates the battery switch. As soon as the knob is turned from “Off” position, the filament switch is closed and remains closed until the “HI-OHM” is turned off Have you seen the new all-metal frame “Midget” heostat combined with Filament Switch— all resistances $1.00. [APRA os Any dealer can supply In Canada —Carter Radio Co., Limited, Toronte > . - e Sacrifice Sale of Amplifiers Large stock of metal ‘“‘flower- type”’ horns, excellent am- plifiers or loud- speakers, priced below cost for quick disposal. For particulars and prices write Salvage Division VicTOR TALKING MACHINE COMPANY Camden, N. J. —— 84 Airplane flame proof Blinker Key ( ny 1140, at $4.00. SBE 1012- A W. Reg Receiver, 1 tube, 50-1000 meters, $40.00 TU a. CQ. 886. Fil. 3. 8-4. 4V: Amps. 6.91; 3 prong base Socket Pin is 4th Terminal $1.50 ea 70-2500 Meter Wave- meter, Type 2500-B-2. Complete. 3 coils. graphs, meer indi cator, $40.00 Just a sample of our bargai-s. Get our new and latest reduced price list for a 2c stamp We bought $10,000.00 worth of United States Government Radio Trans mitting and Receiving Sets and Paris. Mail orders sent all over the world. WEIL'S CURIOSITY SHOP 20 South 2nd Street, Philadelphia, Pa “Radio” with Volume and Distance _ A“COLYTT™ Adjustable Grid-Leak improves . Proper value of leak in grid circuit— gives greater — and earer signa Trya “COLYTT* "Grid-Leak t MONEY BACK GUARANTEE. postpaid with full directions for $1.00. THE COLYTT LABORATORIES 565 West Washington Street, CHICAGO, ILL. SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 87

M 12- 00 ase al ew ght ns all Rear showing Dials showing Plugging-voltmeter into ~ comer adjustable 2’ double seale for High Range Stand for & - terminals. filament and bat- battery testing Voltmeter and High tery voltages. Range Stand. The advantage of a Weston Voltmeter for positive set control is well known. Here is a new combination—two instruments in one—a Pin-Jack Volt- meter and a High Range Stand. Simply plug the Pin-Jack Volt- meter into the filament Pin-Jacks on the panel and you measure tube filament voltage—remove it and plug it into the High Range Stand and you can measure battery voltages up to 160 volts! { The results tube economy, longer battery life, better all- around set operation. * The new Weston Pin-Jack Voltmeter and High Range Stand is a typical Weston product de- signed especially for the Radio Expert and Enthusiast. { For complete information write us for Bulletin “O”. WESTON ELECTRICAL INSTRUMENT CORPORATION 158 Weston Avenue, Newark, N. J. STANDARD THE WORLD OVER WESTON Pioneers since I888 An Adapted Mogul 5 VCX power tube—as easy to | in ring apply as an ordinary tube—has almost double the signal carrving capacity of the ordinary tube This greater capacity eliminates overloading and distortion and it can be applied to any set with- | o~ with t e@ aad a os With an Adapted Mogul 5 VCX power tube in (M 15 your set you will immediately note an unusual mprovement—a general increase in volume, a roundness of tone and clear cut reproduction in ower voice and music that is unobtainable when or- | dinary tubes are used | hy ! uibe ‘Let me congratulate you on the splendid per- formance of Adapted Mogul 5 VCX Power Am- | plifier Tube I found that these tubes give re- markable amplification and _ clarity The tube actually gives considerable increase in volume when used without adidit onal plate voltage or grid bias. But when 135 volts is applied to the plate the volume is virtually doubled PUT ONE ON YOUR SET TONIGHT! | The Van Horne Co., Inc. 91 Center : St. Franklin, Ohio MICA TRANSMITTING CONDENSERS 002 MFD. 6000 VOLTS Manufactured by Connecticut Telephone & Electric Co, As Grid, Radio Frequency By-Pass ae Plate Blocking Condenser EXTRA SPECIAL PRICE $2.00 Each AMERICAN SALES CO. 21 Warren St. N: ¥. C. 85 SAY YOU SAW IT IN QST—IT IDENTIFIES YOU AND HELPS QST

Page 88

Wa Very Special } Watt Transmitting Tubes, t $18.00, limited quantity at $12.00 each postpaid volts, 2.35 amps. Plate ts, 40-50 MA. As described 87, June QST. Discounts to > JOHNSON COMPANY S9ALD Minnesota. If you desire a superior high frequenc receiver or transmitter Send for Literature Laboratory Tested, Extreme Results Guaranteed Special Apparatus Developed Chauncey Wings Sons, creenfieta was Our Readers Who Are Not A. R. R. L. Members uldn’t you like to become a member of the American Radio Relay We need you in this big organization of radio amateurs, the ateur association that does things. From your reading of QST gained a knowledge of the nature of the League and what it | you have read its purposes as set forth on page 6 of every would like to have you become a full-fledged member and add ngth to ours in the things we are undertaking for Amateur | incidentally you will have the membership edition of QST at your door each month. A convenient application form is elow—clip it out and mail it today. Radio Relay League, ford, Conn., U. S. A. enuinely interested in Amateur Radio, I hereby app!y for membership in n Radio Relay League, and enclose $2.50 ($3 in foreign countries) in pay- year’s dues. This entitles me to receive QST for the same period. Please ibscription with the ......... ote Feadiia ¢ cect dateeteksabees issue. Mail of Membership and send QST to the following name and address. tor’s license, if any ........ f which a member ......... ORR eee eee wa friend who is also interested in Amateur Kadio, whose name you us so we may write him about the League? ......seeeeceeeeeceeceeces oe OPP ee eee eee eee eee eee eee eee eee Thanks! SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 89

Only Samson Chokes can Stop all Distortion . Howling, “motor boating” and other distortion can be in- stantly stopped by Samson Chokes which have the patented ) helical winding. This makes them keep R.F. and A.F. cur- 4 rents where they belong at all frequencies particularly those 4 frequencies where other types of chokes act as condensers and let these currents by. Samson Chokes have no pro- : nounced resonance points. y v Use the R.F. Chokes in _ circuits of first amplifier tubes, in B plus leads of R.F. tubes, in reflex circuits, and in place - R. F. Choke of itunes leak in resistance coupled amplifiers. "Use the Audio Frequency Choke in the B plus leads to detector and amplifier tubes. By their use in such circuits B batteries will last much longer and “B” eliminators give much better quality of reproduction. Conditions for Tone Quality Covered in New Booklet. Audio Amplification, by Samson, contains full tructions for obtaining quality reception giv- r much, heretofore unpublished, research data radio engineers. Send 25 cts. for copy com- ete with dozens of circuit diagrams. SAMSON ELECTRIC CO. Member RMA A. F. Choke Sales offices in Thirty Leading Cities. Manufacturers Since 1882 CANTON MASS. Learn to Send the Easy Way With The Improved Martin ‘sz VIBROPLEX Lightaing Bug Trade Mark Reg. U. S. Pat. Offs. For Continental, Morse or Navy es TRANSMITTING CONDENSERS Adjustable To Any Japanned Base, $17 : Nickel-Plated, 19 Oars Over 100,000 operators use the Improved Vibroplex be- cause it is EASIER, QUICKER and MORE ACCURATE Thé new line of TOBE Transmitting Condensers are made for working voltages of 1,000 and 2,000 volts. 1.000-volt condensers fitted with heavy brass binding ats 2 000- volt ondensers have petticoat insulators the binding posts PRICES Capacity Nfds. Type No. 1,000 Volts Ty 2,000 Volts 1 1001 $1.50 2001 $2.50 25 1002 $2.00 5 1005 $3.00 2005 $1.00 1.0 1010 $4 00 2010 $4.75 2.0 1020 $6.) 2020 $8.00 We should be glad to send these condensers, post l ata, on your request, accompanied by check or money TOBE DEUTSCHMANN CO. CAMBRIDGE, MASS. ST SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU than the old key. It transmits with amazing ease. CLEAR, CLEAN- CUT signals at any desired speed. Saves the arm. Prevents cramp, and enables any operator to send with the skill of an expert. Special Radio Model Equipped with Large Specially Constructed $25 Contact Points. Requires no relay Every amateur needs this bug. Easy to learn. Sent on receipt of price. Money order or registered mail. Liberal allowance on your old (Martin) Bug. Order Now! THE VIBROPLEX CO.., Inc., 825 Broadway, New York AND HELPS QST 87

Page 90

GROSS WAVEMETER instrument at 1/3 the usual into cuueeen earrying case of eather handle on top with re- extremely low loss making a wavemeter either the flash lamp will easily respond to an os- or less on the plate of the tube the cover. Calibration better Checked against Piezo oscil- m of 10 points for each curve, rawn from 3 or 4 points Sep- Type 1—L—with flash lamp Type 1—G Type 2—G indicator for 20, 40 80 meter bands. $15 Type 2——-L—with flash lamp indicator for 20, 40, 80 and 200 meter bands $18.75 with galvanometer indicator for 20, 40 80 meter bands $30 2 with galvanometer indicator for 20, 40 80 and 200 meter bands $33.75 J. GROSS & CO. 1 with each coil New York City - eee eer” Bradlexstat Provides complete noiseless fila- ment control for all radio tubes without change of connections. Metal parts are nickel plated. DYNEX FOR One hole mounting. Self con- tained switch opens battery cir- cuit when Allen-Bradley Co 277 Greenfield Avenue Milwaukee, Wis. #,°,"s8s"a ates" Become a Radio Operator See The Earn a Good Income. Avoid Hard Work. Learn in the Second Fort U.S. - Radio inspector located here. Positions plentiful. lendid Climate. Other advantages to the siudent unequalled in any other American port. Nearly 100 per cent of operators graduating on Gulf during past four yous ——— 4 MR CLEm Bons, Supervisor of Instruction. las raduate = ae Day and Nig 1 lasses; enroll anyt Write for Circular Deoartment GULF ei SCHOOL 844 Howard Avenue, New Orleans, La “." Nicholson Electric Co., 1407 First North Street SYRACUSE, - ~ N. Y. KT LLERADIO 621 Market St.% SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 91

Service— In addition to their relay work the amateurs of the world are contribut- ing substantially to the development of the radio industry. Wherever we find them in a radio factory, jobbing establishment or dealer store, we know that they are spreading a story of more intelligent operation and care of radio-sets. Service is the hobby of most ama- teurs. Let us send you a copy of our No. 700 circular describing the Jewell Radio Service Test Set. Jewell Electrical Instrument Co. 1650 Walnut Street CHICAGO 26 Years Making Good Instruments Jewel Radio Service Set No. 117 (Heavy-Duty 8 gets that last mile” RADIOHM VA ener for Simple Sp per wren i) a ‘ i U. X. Control of aX". r Pe a B-Battery =i ; ° ° See That Gap? Eliminator AIRGAPS will help rid any set of those squawks, A Centralab Heavy-Duty Radiohm insures effi- howls and frying noises due to socket capacity; clency. Full resistance variation with a single they keep the grids negative, stabilizing the cir- ~X, inch, C : ns, panel meting Se pee cuit, causing tube to go into oscillations more etti o provide ariou tage Mer" ane . : approved by the Raytheon Laboratories. Ru smoothly and not spill over” until maximum re- sistance remains permanent as adjustal—no car sults are attained. " ‘ P bon particles or discs. Insulation withstands 1500 THEY HELP PREVENT closed circuit, absorption volts The smooth, noiseless operation greatly of current, intercoupling of circuits, feedback and improves any on - undesirable capacity; they make any circuit more SS aes eon stable and sharpen tuning, resulting in purer and 4 clearer tones with more volume on local i CENTRAL RADIO LABORATORIES aca ciaiienen and dis- 20 Keefe Ave. Milw t oe Australian Representative—United ng Sent Direct If Your Dealer Cannot Supply You POSTPAID 60c EACH Lid. AIRGAP PRODUCTS CO., MFR. jid., Sydney Canadian Representative—Irving . “ e W. Levine, Montreal. Great Britain Representa 13 Campbell Street, Newark, New Jersey tive—R. A. Rothermel, Litd., London Makers of a full line of variable resistances @ * 69 manufacturers of leading standard sets SOCKET | o"e"a" naa” aaa aaa saa a Meee e aha” | _ St gets that last mile’ SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST Don =

Page 92

Blect tu

. COLEMAN & DAVIS oe CONTRACTORS AND BUILDERS PHONES: 5133-6302-Y 211 NORTH BROADWAY LEXINGTON, KY. > Specialty Co., July 26, 1926 Conn. U.S.A. Some time ago I purchased from you an ESCO motor-generator volt 200 watt,2 unit machine mounted on one base,and am writing a few lines to let you know how much I think of your Generators. The generator not only gives its rated voltage,but goes te better,putting out 1100 volte,and will stand a considerable oad for a good while. Am using it in connection with a fifty watt i every night for the past two months,during the hotest part of the ve been working three or four Australians and New Zealanders. When it comes to dx EBSCO sure is the berries. The information ce that you gave me several months ago,wes highly acceptable,and t accounts for some of my good dx this summer. My signals have been heard and worked in every part of the the last two months of summer and I credit it all to the keen the ESCO generator puts out. My filter system is what you suggested, 50 henry choke,and 6 mfd condensers. Thanking you for past favors,I remain Here it is, the key that’s being used all over the world, just the thing for the “gang.” Simple in operation and easy to adjust. Made, guaranteed and sold on a money-back basis

by an organization with over 40 years of ex-

tr ransformer made. (Patented) Plate winding 9000 volts with 1600 volt center tap. te for Catalogue Illustrating Aud- Also bas filament windings for Radiotron and Kenotron tubes and Transmitting Transformers. List $38.50 ea. SPECIAL PRICE $1 1.50 BENJAMIN HUGHES ELECTRIC Co.

Transformer Bailders Since 1910 208 Logauchetiere St. W.Montreal, Canada AMERICAN SALES CO. 21 Warren St., N. Y. C.

SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

ae i? hL~iol te -i-w Bn beac Ae ![e2eoco

Page 93

AM-ADS NOTICE Ev’ective with the July issue of QST tLe policy of the liam Ad” Department was altered to conform more early to what it was originally intended that this ck partment should b It will be conducted strictly : rvice to the members of the American Radio R League, and advertisements will be accepted wing conditions “Ham Ad” advertising will be accepted n members of the American Radio Relay League The signature of the advertisement must ix the individual member or his officially assig Only one advertisement from an individ accepted for any issue of QST, and the acvertis t must not exceed 100 words Advertising sha be of a 2 f i lio amateurs or experim« ets pursu No s fa cha rw am any crayy ai arras . 4 capital s t ~~ wi " ‘ a ertiser sta out fr S The Ha A : 7 r wo Remit 4 x , | act 4 » Clos 1 2 f second " preced s at 4 THE life blood of your set—plate power. Powerful, per- manent, infinitely superior to dry cells, lead-acid Bs, B eliminators. Trouble-free, rugged, abuse proof, that’s an Edison Steel-Alkaline Storage, B-Battery. Upset el trically welded pure nickel connectors insure Lithium-Potassium solution (that’s no lye plete, knock-down kits, parts, chargers. Glass shock-proof jars, peppy elements, pure nickel, anything you need. No. 12 solid copper enameled permanently per- fect aerial wire Tic 100 ft Make easy money with 10- battery service station charger. Details, full price list. Frank Murphy, Radic 8ML, 4837 Rockwood Road, Cleve- and, Ohio 2 to 35% No sets. prepaid. for new parts $2.50 year, trial 20 weeks Kent, Ohio. Com- tubes, quiet discount to amateurs on receiving part Over two pounds data, circuits catalog 25c, Also exchange new receiving parts you want what have you? Weekly data bulleti: $1.00. Fred Luther Kline, JEWELL meters 25% discount We specialize on parts and carry a complete line of ham transmitting and receiv- ing apparatus in addition to regular broadcast equipment. We carry in stock products of the best nationally known manufacturers, such as Acme, National, General Radio, Thordarson, Raytheon, Philco, Nathaniel Baldwin, Radio Engineering Laboratories, Cardwell, Allen Bradley, Tob Deutschmann, Kellogg, Centralab, Yaxley, Acme Wire Company, Crescent Radio Company, M. M. Fleron, Aero Products, Inc. Tell us what you want. We allow dis- counts to A.R.R.L. members and dealers only. Give your call letters. Roy C. Stage, Wholesale Radio, Montgomery and Burt Sts., Syracuse, N. Y. WANTED—a December 1922 QST. H. Wood, 1054 Elm, Warren, Ohio. Gerald Julian, 424 Park Road, West Hart- “Not always lowest in prices but QSL cards. ford, Connecticut. highest in quality.” AMATEURS. Big discounts on short-wave appartus Western Electric 50 watters (limited supply) $27.00. Aero coil kits $10.75. For low-price list write 2APJ, 643-5 West 17Ist Street, New York City 8FN’s CHEMICALS sure are F.B. for charging B Bat- teries and B Units and for high voltage rectifiers aluminum and lead are used No borax. 50c per box. Wm. Threm, 8FN, 2325 Vine St., Cincinnati, Ohio AMATEUR radio equipment built to a quality standard, not a price. E-R-L equipment is built of the finest ma- terial and is guaranteed. We use your parts if desired in any equipment Our line is transmitters, receivers, master oscillator units, wavemeters, et: Our new Marin type equipment for use on sea-going yachts or cruisers Special equipment to order. Thos l Ensall, 1208 Grandview Avenue, Warren, Ohio. Radio 8BDN. where SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QsTt 91 absolute complete line of Ron L. Wollard, HAMS! Write for our catalog of transmitting and receiving equipment. Newark, Ohio. GE aeroplane dynamotor, Dubilier filter, 12 DC-400 DC $14. 2ALN. BETTER Edison elements. Welded connections, 7c pair. Sample cell 10c. Paul Mills, Woodburn, Oregon. WESTERN Electric 7-A power amplifier with horn and tubes, excellent condition $50. Ed. G. Raser, 315 Beech- wood Ave., Trenton, N. J $5.00. Charles Been used one month. 1IBMG, UV202 for sale. Stevens, Stafford Springs, Conn. Several broken or burnt out WE-VT 4 fifty Ashby, Gibson City, Illinois. WANTED watters. D. ] OMNIGRAPH wanted—state type, number, condition and price. TAV DODGE Radio Shortkut fixes signals in mind to stick. Kills Hesitation; “Speeds Up” to 25 per quickly—easily. Appendix to Shortkut senders rapid progress more cer- tain. Key Work by 8DRI-KUF cultivates legible trans- mission. Bad “‘fist’’ prevented or corrected—Take advice from KUF. Key Work and Appendix $1.50. But if purchased Shortkut only and now copy less than 25 per special price will be One Dollar—specl dely mail; none COD—Money Order only. Dodge Radio Shortkut with Appendix and Key Work $3.50 U. S. and Canada—Else- where $4.00—reg. mail. Terms as above. C. K. Dodge, Mamaroneck, New York. 49ec TRANSMITTING rheostats for 5-7.5 watt tubes. 3 for $1.25. New VT2 tubes $4.50. Joseph Neubauer, 1220 Pine Street, Phildelphia, Pennsylvania. QSL cards printed on Government post cards. Two colors, 100 for $2.15, 200 for $4.00. Full amount must accom- pany manuscript, including postage. Samuel Singer, 157 Thatford Ave., Brooklyn, N. Y. 2AIQ Curtis-Grifith “‘Curgri-Co” or Roice 5-watt DX Babies $3.15 postpaid with free callbook. Mueller 150-watt input tubes $15.00 socket free. Federal Buzzers $2.75. Potter 2000-volt 1-MFD filter condensers $2.50; 2500-volt 1-MFD filter condensers $3.25. Raytheon Tubes $6.00. ( Dis- counts to bona-fide dealers—give references.) New “‘Ham-list’” with latest transmitting circuits, parts, etc., Price Griffith, 1109 Eighth Avenue, Fort Worth, Texas. BEST offer takes Blaine Davis, new Philco glass-cased storage battery. Duquesne, Pennsylvania. WANTED Westinghouse detector amplifier, unit type DA. George Woodbury, Union City, Indiana. FOR sale—my entire equipment. transformers, etc Send for list. Plaine, Iowa 9BJX. Condensers, meters, Harold Cerny, Belle BALDWIN phones $5, Murdock phones $3, 0-15 Jewell voltmeter $5, 8 volt Thordarson Transformer $5, Thor- darson Power transformer for 5 watter $3, C302 tube $1, transmitting grid leak 75c, UC1014 and UC490 Conden- sers $1. Henry Meyer, Jr., Rockdale, Texas. 2CDH—Castleton, N. Y., selling out new 50 watt parts 50 WATT Thordarson transformer. New. 3000 v tapped, $16.00. 9BOS WHILE they last, genuine brand new R.C.A. UV202 five watters, $2.45. James Marinell, 725 Oak Street, Ohio. Youngstown, FOR sak New perfect condition. Decatur, Illinois. Marlo super-sync rectifier. $56.00. 1 Guaranteed 9DQU, 1538 N. Edward, MUST sell. Going to school. 15 watt 40 meter set with tubes $20. 15 watt CW fone set $30. Esco 500 v dvna- motor with rheostat $40. Tubes, meters, chokes. Write for particulars. 9BIF. WANTED—A 0-1500 voltmeter (good condition) Write William Crim, 2295 Broadway, San Francisco, Calif. FILTER chokes unmounted 20H 25 M.A. $1.00—30 H 50 M.A. $1.50—50H 60 M.A. $2.00. 275V transformer from 110 $2.00 Use two for Raytheon tube, 420V secondary with midtap and 6V primary with midtap from 110 mounted $4.00. All repaid three zones. Write for list of other parts. M Leitch, 32 Park Drive, West Orange, N. J :

Page 94

PURE a rectifier elements, holes drilled, brass scr pair 1/16”, 1” x 4”, 18¢e, 1 x 6 15c, 1% x € Sheet aluminum 1/16” $1.00, %” $1.9 yuare foot all prepaid. Silicon transforn t rder .014”. 10 Ibs. 25 cents, 5 Ibs. 3 > Ibs. 35 cents per Ib. 4 cubic inches extra. % cash with order— balance e wound copper ribbon .350” wide; ; r > turn, 4%” 13c¢ turn, 5% l5e tur \%” 20c turn, prepaid. Geo. Schu 1 FOR Sa t 6FC: Jewell 0-5 TC $6.50; Acme Acme 1% henry 500 mil double choke, $ UC1846, $1.00; W.E. 2 mfd. filter mfd., 75ec; UC1831 variables, $1.10, A { 1 mfd. Dubilier receiving con- densers I y BCL Tuner, $3.00; Accura- tune d sl, $1.00; Bradleystat, $1.25; Dictogra er with Baldwin unit, $6.50. Wante M panel mounting galvanometer. Walter K h St., Santa Barbara, Calif. WAVEMI built; Bakelite panels and coils; not in nsers and solid coils bulb in- dicator hed, read in tenths of meters at short saranteed within % of 1%; no flop: re calibration. This is all the dope. Or tpaid, $1.50 extra per additional band I Whitewater, Wis. 9CSM. SELI } namotor. 9CJH. READ rdarson 450 watt 1500 each side of Jewell D.C. milliammeter, 0-30 f requency 0-5, $7.00, and A.C. filament What have you got, OM? 8CFZ, S LeR N. Y FOR low 00 mil. Willard element stor- age B. | Ter Acme 200 watt transformer new $15 watt filament transformer $5.00 1 UX216 B $4.00. Want good synchr 1500 volt M.G. SAMT, R. Burrow Cincinnati, Ohio. GE dynor put 1500 volt output, at .233 amp. ¥ $18.00. 700 watt power trans- former r tapped winding. Two 12 volt w ups, $7.00. Two UV217 Ken- otre “ Filament transformer 150 watt ? with primary rheostat, $5.00, Jews T n. diameter 0 to 10 amp. $5.00. Henry |! Terson Ave., St. Louis, Missouri. QRH?? } answer accurately if you have a Gener meter. Range 14 to 224 me- ters. en parately calibrated. A ruggedly built, é rate wavemeter, and in stock, price $ liately for descriptive leaflet. 500 r enter tap, $2.00. Commercial ammoniun nd cartons .50c. .002 Mica grid cor $2.50. One mfd. 1750 volt filter condenser watt porcelain base sockets, $2.50 y ir price list It’s free for the askir M it East 10th St., Fort Worth, Texa 1000 OM? r | “S” tubes, transmitting tubes, t broplexes, receivers, trans- mitter CMS, L. J. Ryan, Hannibal, Mi ac - FOR sale—™M amateur station 3BTA. Motor ne transmitter, re- ator rystal control BT Everything for some ceiver mtteries. real f A used less than 5 hours. Will sell all f sheck wins. Write for list. B. R. Bar Penn. For that Thordarson power transformers 50-55 00-1500 each side $15.00: 80- watt f $6.00. Thordarson 650-volt power-filan mews for 5-watters $6.90. Curtis- Grimit? lament transformers 550 each side $12.5 wound copper strip 6-inch size per tur turn 10¢. Aluminum square foot & t 85e. Jewell 0-15 AC volt- meters $7.0 liammeters $7.50 Power grid- leaks $1.( 1 volt 1l-mfd. filter condensers $1.75 ( H t” 4e. Service—That’s me. James Rad 4.Q-C, 1109 Eighth Avenue, Fort Worth, T >PRES ed—Every set owner is a live —— o sranteed 180 volt “B” Power Tinit. Ss Liberal commissions. George R. Dewns, 75! St. Paul, Minnesota. 92 CRESCENT Lavite transmitting grid leaks 5000 ohms $1.95. R.E.L. Inductances, double $8.90; single unit $4.60. Bremer-Tully Short wave Outfits with Coils (12% to 200 meters) $6.90. Signal Wireless Practice ts $2.75. % K.W. Wireless Keys $2.25. Sterling Volt- ammeters, 0-50 volts; 0-35 amperes $2.85. National and Write f Mass. Cardwell Condensers. Many other bargains. list. M. B. Spinoza, 27 School St., Boston, a NEW W. E. fifty watters $26.00. UC1014, 3000 volt, .0; mfd. condensers $1.80 Amertran apparatus, power tra: former, PF52, $13.00. De Luxe transformers, $15.00 px pair. Chokes $5.00. Resistance units available. Pea: “N” tubes $2.50. 2BYJ . TRADE or sell for short wave receiver or transmitt: Kennedy Universal new, Omnigraph 2 Oliver Typewrit Binoculars and telescope. What can you do for m George Bryce, Bristol, Conn. FOR Sale New Westinghouse double commutator 750 \ 200 W. D. C. generators direct connected to 110 V. ¢ eycle A. C. Motor $45.00. Field rheostat $4.50 each extra 250 with order, balance C. O. D. Express Inspect allowed. Also other voltages and capacities. James J Smat, 1734 Grand Ave., Chicago, Ill. WHEN it comes to Amateur transmitting and receiving apparatus, there’s one place you're sure to get dependab| goods, quick service, and fair prices We can’t tell about it here, but 9ALD’s “Hamalog” ,the original and still the best Ham Catalog, is waiting for you with al! the dope. Send for it today—it’s free. Remember w: rent Omnigraphs at low rates. Special discounts on ar overstock of genuine General Radio wavemeters. See « display ad regarding DeForest 20-watt tubes. E. | Johnson, Waseca, Minn., 9ALD. Westinghouse 1000 volt 250 watt Field rheostat. Good conditio: MOTOR generator. motor 110 volt 60 cycle. $67. S8DGV, 1169 E. 145 Street, Cleveland, Ohio. NEW generators, 275-volt 120-watt. Fine for phon $8. UC1831 variable condensers, $1.50 1808 $1.5 200-watt 500 cycles used generators $10 14-KW $15 12-step inductances type 111E maximum 11000 meters $3 1250 honeycombs Tic. Radig Corporation 750-watt trans formers $11. 150-watt filfment 10% volts $4.50. N 14 enameled $4.75 per 1000 ft Code recorder $20. V7 ones $2. VT twos $4. Western Electric microphones $! 2mfd. condensers tested at 400 volts $1. Postage or express extra. Enclose stamp for list. R. Wood, 46-2 102 St., (38 Way Ave.) Corona, N. Y. phones $2.79 a pair. Signa .78 each. Send for my bullet 9MV, Story City, Iowa NEW Brandes superior variable condensers all sizes of bargains for the ham. HAMS! Announcing “Callzeard”, a monthly pamphlet consisting only of calls heard and worked lists from al! parts of the world. First issue January. Price only fifteen pennies per copy, $1.50 per year. Published by hams for hams. We can’t do it without help fror you. Won't you endorse it by sending 18 your lists and subscription? Published by 3FI and 3ABH. It’s for you, men. Don’t delay. Send subscrip- tions now to 2857 North Bailey Street, Philadelphia Penn. AMATEUR radio equipment built to a quality standard not a price. E-R-L equipment is built of the finest ma- terial and is guaranteed. We use your parts, if desired in any equipment. Our line is transmitters, receivers master oscillator units, wavemeters, etc. Our new marine type equipment for use on sea going yachts or cruisers Special equipment to order. Thos. Ensall, 1208 Grand- view Ave., Warren, Ohio. Radio 8BDN. TANTALUM strip for rectifiers—radically new universal! variable condensers—cross wound coils for Superhetero- dyne transformers and R.F. Chokes—Government lor wave receivers, air condensers for transmitters, and Edis B B 4 batteries—2200-volt transformers—quartz crystals Peaked 10 to 1 audios—Superhet & Power transformers Transmitter B Eliminators—A B seemed parts Chokes any size iron or air core—Filter condensers Oscillator wavemeter drivers from battery or A.C.—Lou speaker coupling chokes and transformers—Jewell meter Sales representatives wanted—Give Call for Catalog & Disct. Richmond, Charles O. Snyder. Indiana. FOR sale—Westinghouse type T. F. 20 watt phone ar C. W. transmitter complete with 500 volt moter generator tubes, microphone—key, $75. Jack Woodard, Douglas Georgia. (Continued on Page 93) SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPs QST ~ i “fo wi ty — oe i — eee ff -_oO in “1 aXOw al awl Lal eat e-.e 4 mn lo mi melc =| wre! Pai

Page 95

NAVY standard compass receivers, SE1440A, 150-1250 meters equipped with detector, 3 stages audio, $200. 10/500 volts Navy dynamotors, $20. Navy 900 cycle alternators, self-excited, $20. Western Electric 50 wat- ters, $32.00—250 watts, $95. UV204, $85—UV203A, $31.00 —UV203, $20. Dubilier mica condensers 8500v—.004 new $7.50. Western Electric 2B superheterodyne receiver, 180-600 meters, special $200. Complete with tubes and loop. U. S. Navy CW 936 transmitter receiver, brand new, original case—complete $180. Weston meters 15‘ of list. Long wave navy receivers CN. 240, $65. Navy wavemeter 100-4000 meters, bargain $85. Arthur Faske, 1515 Eastern Parkway, Brooklyn, N. Y. RADIO specials—Federal filter condensers—650 volts DC, $1.35. Federal filter condensers—1000 volts DC, $1.80. Federal power transformer—500 watt CW—1160 volts between outer wires. Filament winding 11 volts $26.00. Radio catalog free on request. 25% discount on receiving apparatus. I. C. Patchin, 525 Park Avenue, Kent, Ohio. 9CHD—Ralph E. Skyles, Colorado. Carson Avenue, La Junta, 9CKF—Frank Colclough, Box 211, Philip, South Dakota. ce3VH—A. R. Williams, tario, Canada. 56 Madison Ave., Toronto, On- nPB3—H. A. Veringa, 8 Gerard Schaepstraat, Amster- dam, Holland. The following stations belong to members of the A.R.R.L. Headquarters gang. Mail for them should be addressed care A.R.R.L., Hartford, Conn. 1MK Headquarters 1DQ John M. Clayton 1AL H. P. Westman 1ES A. A. Hebert IBAO R. S. Kruse 1KP F. Cheyney Beekley IBDI F. E. Handy 10A R.S. Kruse IBHW K. B. Warner 1SZ C. C. Rodimon Q R A SECTION 50c straight, with copy in following address form only: CALL—NAME—ADDRESS. 1AZJ—Jack Bean, 27 Adam Street, Pittsfield, Mass. 1BR—M. G. McCarroll, Technology Dormitory, Cam- bridge, Mass. 1iCJH—Roy B. Fuller, 30 Harrison Street, Pawtucket R I CNG—118th Observation Squadron, Air Corps, Connec- ticut National Guard, Brainard Field, Hartford, Conn. 1CNP—Everett L. Roberts, 5 Summer Street, Orono, Maine. 1JZ—Devereaux Martin, 21 Garland Ave., Malden, Mass. PRICES TALK — Immediate—Reliable—Service. Thordar- son combined plate and filament transformers. Ideal for 5 and 7% watt transmitters. Has 650 volt and 10 ven filament with center taps. Special $6.45. Every make of power transformer at low bargain prices. RCA-UC1803 condensers 10,000 volt breakdown, great for Hartley Cir- cult blocking and grid condensers $.50 RCA UC 1846 condensers, the berries for tuned plate and grid trans- mitters (KFUH circuit) 10,000 volt $1.00. Tobe Deutch- mann 4 MFD 1000 volt filier condensers. Special $4.65 Genuine Cardwell 23 plate condensers $1.25, 43 plate $1.95 Cardwell 21 plate transmitting double spaced condenser 0002 MFD $3.95 Jewell inch flush type voltmeters and mil Remeneien $6.45 Thermocouple antenna meters $10.35 New General Radio Wavemeter type 358 $19.50. 15 dial latest model omnigraph $26.50. Special 5 dial mnigraph combined with key, buzzer and coil, 50 list, Special $25.00. Aero short wave coil kit $9.75. R.E.L. receiving coil kit $3.85. R.E.L. transmitting inductances, double complete with clips and coupling rods $9.45. Single unit $4.65 Send for complete list of parts. All appara- tus brand new and fully guaranteed. Deal with a brother ham and save your shekels. 2MA 207 Neptune Ave., Brooklyn, N. Y, iIZA—C. E. Jeffrey, Jr., 725 Commonwealth Ave., New- ton Center, Massachusetts. 2ABO—William T. Finney, 58 Simonson Ave., Mariner's Harbor, Staten Island, N. Y. 2ABP—William Brady, 2521 Woodbine Street, Ridge- wood, Brooklyn, N. Y 2MK—E. F. Raynolds, Central Valley, Orange County, New York. iFO—C. A. Davis, P. O. Box 668, Winter Haven, Florida. 4HA—Eugene L. Feagin, 226 Hyman Ave., Henderson- ville, Cc. iSP—James B. Witt, 832 N. 5th Avenue, Knoxville, Ten- nessee. . 6ACQ—Walter James Street, Robertson, 2015 Stockton, California. South California SAEX—David L. nia. Bigley, 836-54 Street, Oakland, Califor- 6AZS—William C. Francisco, 9995 Crim, Apt. 7, California. Broadway, San 6CNX—Lawrence Johnson, Ephraim, Utah. 6CUA—Dr. J. W. McElwee, Box 333, 1362 Paseo Del Mar, San Pedro, California. 7TAAC—M. A. Frye, Heppner, Oregon. 7GC—Geo. DeWitt Line, Sterling, Idaho. 8AZD—Edward C. Brichta, 3393 Williams Ave., Michigan. Detroit, 9AQZ—E. L. Aschinger, 1005 Streator, Illinois. S. Bloomington Street, SARN—John S. Roelfs, Jr., Bartonville, Illinois Street SBWJ—(Ex 8DOV)- Paintsville, Kentucky. Edwin E. Hare, 550 Brown SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND A screw driver - adjusts an - in crowded places. X-L VARIO DENSER Results in easier tuning, more dis- tance, volume and clarity—greater stability. Indorsed by leading radio authorities. SEE THAT SCREW Model “‘N” A slight ture —~ q correct, tube oscillation on all tuned radio frequency its eutrodyne, Robers two = Browning: Drake, MeMurdo aire er’s Knockout, etc., capacity ge 1 0 micro-microfarads. Price $1.00 Model ag" with grid clips obtains the proper grid capa- city on Cockaday circuits, Iter and inter- - edi ate frequency tunir in heterodyne and grid bias in all ‘sets Capacity range Model ‘e- ! 002 to .0001 mfd. Model 6-5 0001 to .0005 mfd Medel G-10 .0003 to .001 M. f. da Price $1.50 X-L Push Post Push it down with your thumb, Insert wire, remove pressure and wire is firmly held Re le ases ir nstar tly. Also furnished mounted on trips. Price 15e. X-L RADIO LABORATORIES 2428 N. Lincoln Avenue Chicago, Ill. "Produced CRESC LA foe Distoctiontless oe Dual resistance for DeForest ‘ * tube $3.50. Consists of two units mounted on bakelite anx ; connected in parallel. Please specify if your *‘H’’ tube requires 60,000 ohms or 20,000 ohms All amateur apparatus in stock CRESCENT RADIO SUPPLY CO. Let us drill and engrave your panels ! Liberty St., Jamalea, N. Y. HELPS QST 93 o

Page 96

FOR YOUR CONVENIENCE 5] QST’S INDEX OF ADVER.- Acme ere PE! neo 798 Massachusetts Radio School ; 7 The METRALIGN SLT condenser was rs Marlo Electric Company anata 82 pul ed in May. - B 5 Sales Company . eer 80 ee Se GD $acssveceesscces6éecees 95 The ples on w hich METRALIGN National Company . oe : 76 *. = Nicholson Electric Company .............ccceeee R8 SLT | remain the exclusive de Omnigraph Mfg Comeane , , 78 or a. re Ce... .. cccceocceeeseces 78 Polymet Mfg Corporation e« 70 e oats Metal Mfg. Co .. 74 > Back Copies ....... se 76 Stati 1¢ mn Se paration Radio Corporation of America 1 All WaveLENGTHS | fi SiS: tadio Surplus Corporation . es 60, 8 on ave Randolph Radio Corporation 61 TI med as being “just as good” are Samson Electric Company . 87 — the original and genuine. Sangamo Electric Company ‘ 64 i] Scientifie Radio Service : 72 GET THIS BOOKLET Seattle Radio Laboratory seas 81 N Silver-Marshall, Inc. . se 72 ed a booklet on METRALIG! Smith, B. Hawley 62 , education on condensers. Spartan Electric Corporatior sean 81 today State Radio Crmpany . . 54 ~ ccaccanhe seceseseneucewnns 54 "mY W" NSTRUMENT Stromberg— oh 86 ' Wireless Specialty Apparatus Co : 78 H X-L Radio Labs - ‘ Stamos 93 _ Yaxley Mfg. Company eee ; cccscceser : 51 : I BU, Ge ceccecesadsisasoussasesscoceesesesé 80 7 94 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 97

88 RA OU eAey 31-93% * Se es = ee eek Lok 2 eke be be be be ee sAuScwee = “TuHatT’s a pretty broad statement, Tom. Won't “They last twice as long as the smaller batteries of equal voltage”’ batteries of equal voltage. Eveready Heavy-Duty h you have to make it conditional on the number of tubes in the set or the use of the new power tubes?” “No, sir! Under the same operating conditions— whether you use four, five tubes or more, whether you use a power tube that uses up to 135 volts, the Eveready Heavy-Duty No. 770 or the even longer- lived Eveready Layerbilt No, 486 will last twice as Batteries are the great contribution that the world’s foremost electro-chemical laboratory has made in “B” battery economy, dependability and satisfaction, and the satisfactory reception of radio programs. Dry “B” batteries give a noiseless current, pure D. C. (direct current), the kind that is essential if you prize pure tone, long as the smaller sized 45-volt batteries.” “Well, they ought to, they cost more.” “Your arithmetic is good, Send for booklet, “Choosing and Using the Right Radio Batteries,” which we will be glad to send “Yes, about a third more—but lasting twice as you upon request. long as the smaller batteries, they cost much less.” the proper battery equipment for use with the Tom, but if that’s so, when I bought my set why did the dealer equip it with the smaller Lert - Ereer- Eveready 772? Why didn’t he we, _ put in the Eveready Heavy- Duty Batteries?” “He probably thought he was doing you a favor — making your first investment cost you a little less. That little differ- ence looks like a lot to a good many folks who are buying their first set, equipped with tubes, loud speaker, ‘A’ and ‘B’ batteries and everything.” Heavy-Duty batteries last twice as long as the smaller Ricut- Reer- eady Dry Cell Radio ‘‘A’’ Battery, 1% volts. Radio Batteries -they last langer This booklet also tells about new power tubes. There’s an Eveready dealer nearby. Note: A “C” battery gives a qual- ity of reception unobtainable without it and greatly increases the life of your “B’’ batteries. Manufactured and guaranteed by NaTionaAL Carson Co., Ine. New York San Francisco Canadian National Carbon Co., Limited, Toronto Ontario SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST Tuesday night means Eveready Hour 9 P, M., Eastern Standard Time, through stations: wear—New York wsat—Cincinnati wsaRr—Providence wTamM—Cleveland WEEI—Boston wws—Detroit wtac—Worcester woan-Chicago — > Iphia woo-—Davenport wor-Buffalo Minneapolis woan-Pitteburgh OO? { St. Paul Esp-St. Louis WRC- Washington 95

Page 98

after all... “OLD FRIENDS ARE BEST” N THE years that have flown since Acme pio- neered in transmitting (in those days when‘‘ama- ir’’ meant amateur) we have tried to keep faith th our staunch old friends of Q. S. T. Looking back now, we feel old. Almost every ime that used to mean something in the manu- ture of transmitting apparatus has disappeared — deserted to the purely receiving field. \eme, almost alone, still sticks to the ship— tries to keep faith with its old friends. And t, while holding and serving its old friends, Acme s kept pace with radio progress. Today Acme is one year ahead in the two most important ends of radio reception, quality and elimination. For quality, Acme offers the new amplifier in three stages, first resistance coupling, cond transformer coupling, and last resistance supling with impedance leak; as well as three styles loud speakers that give “reproduction without stortion.”” See Acme’s contributions to quality and elimi- tion at any good dealer’s, and send 10c for new \eme booklet, “Power Supply For Radio Sets.” President, Acme Apparatus Company Dept. E19 Cambridge, Mass. AC ME ~for empilification 96 SAY YOU SAW IT IN QS T—IT IDENTIFIES YOU AND HELPS QST

Page 99

1711 Park St., Hartford, Conn. F. E. Handy, Communications Manager The Month with Expeditions VoQ MANLEY of PERATOR ED the Putnam Arctic O Expedition reports that almost all of his traffic for the last month was handled from North Upernivik through 9CP, the station of Mr. J. R. Miller at Hammond, Ind. Contact has been next to perfect even when VOQ used the low powered emergency out- fit provided with Eveready B batteries for plate supply. Signals from the Schooner Morrissey of the expedition have been worked using both the twenty and forty meter wavelength bands. The thrilling story of the week of trouble when th Morrissey ran aground at high tide near Whale Sound has long since been in the newspapers so we will not repeat it here. The efforts of every member of the expedition saved the ship after hope had been prac- tically given up. During the time when the Schooner was on a submerged rock the radio outfit was not used much, as the batteries could not be recharged and it seemed best to conserve the power supply of the main outfit until the very last. It gave a comfortable feel- ing of security unknown to explorers a decade ago, to have available the means of communication with friends. It did not become necessary to make use of either the main or emergency sets to call for help but everything was on hand with which to do so if the party had had to abandon ship 1,000 miles from the nearest settlement where help could be secured. A radiogram sent A.R.R.L. Headquarters by Manley contains a list of amateurs worked up to Augus: 22 This list is quite able to speak for itself. Practically every part of the country is represented. “Manley says that in three trips made from Uv;ernavik to Whale Sound results have been duplicated except for local disturbances. North of Cape York the signals fell off noticeably, VOQ getting out best from Melville Bay. The list follows: IFD, 1FL, 1AAO, 1PA, 1HJ, 1CMP, 1BKQ, 1ACI 1AAY, 2BNZ, 2CRB, 2AEV, 2NZ, 2NF, 2U0, 3Z0O, 3MV, pr4RL, 43S, 5QL, 5ATA, 6JP, 7TAIM, 7MN, 7RL, 7TK, SAIP, 8EW, 8AJN, 8ZAE, 8BPQ, 9KD SEJI, 9ZT, 9KB, 9CTG, 9BJK, 9CP, 9CPQ, 9CKS, clAR, c2BE, KGBB, VYG, DG1x1. Since August 22 when Miller (9CP) left his station for a month’s vacation in the West, the Morrissey has been coming farther south. The usual quantities of traffic and press have been put through 2NZ, 1CCZ. 2AGQ, 3AHA, 2AAN, 2U0 and 2CTH. Although 9CP will not be on the air again until the week of Septem- ber 19th, there is none of the old worry that we will lose contact. Dozens of stations are ready standing-by and eager to take traffic. 2NZ thought he could stay off the air for at least a couple of months after his strenuous watches with KEGK, but he is back and hard at it again, keeping a daily watch to clear the hook at VOQ between 10 and 11 p.m. E.S.T. A thousand words of press have been handled in two weeks. Sometimes 2NZ and 1CCZ copy together to make repeats unnecessary. When the A-bat went dead at 2NZ on one occasion, Hendricks of 1CCZ took the press on schedule and QSRed to Strout on a later schedule. 9ADS tried to give Manley a lift on some of the traffic on one occa- sion but his pet power leak started and he was forced to QSK. 2ACQ reports that VOQ is on every night after 9.45 p.m. E.S.T., and that VOQ usually works on 37 meters. IAAY, c4DQ, 3MV, 43S, 5ADY, 9FT. 9CET, 9CKS and 9DCK all report VOQ very good. There is sometimes a note but not “fluttery” D.C. QST FOR OCTOBER, 1926 often bad QSS. The sigs have the wabbly CW character- istic of any small ship when at sea. The operator of f8JN copied VOQ on a ten foot indoor antenna August 1 when she was at Whale Sound. WNP The MacMillan expedition contact has been good, also. 1ZK and 1AAY still take most of the messages for New England. Most of the Chicago traffic went through these eastern stations up to September first when WNP hooked 9CEJ in Chicago. 1ZK handled over ten thousand words up to September 7th in 227 official messages. All the messages in his file make a very complete and interesting story of the expedi- tion 1ZK's message tally shows 3449 words sent and 6871 received! (not to mention the various service messages}. 1AAY handled about 182 messages with expeditions, keeping schedules with both WNP and KGBB. About 2500 words per week went through IAAY. Messages for Maine and Illinois points were forwarded by radio via 1BIG and 9AAW. This month the Bowdoin and the Sachem Third are on their way south. As we write, it is expected that the Bowdoin will dock at Wiscasset, Maine, about September eleventh. The photograph we show this month is that of 1AAY at the Cambridge, Mass., location. This outfit connected with WNP before being set up at the summer QRA. The expedition contact from 1AAY mentioned this month was all performed from Holyoke, Mass. Gold tells us that although this is probably the last of the work for WNP and KGBB, he is planning to carry on from Cambridge again when he gets back there this fall. He says that the M.I.T. location throws an R7 signal into Brazil. When there isn’t much studying to be done, he stands a good chance of connecting with the Roosevelt Memorial Expedition (GMD), whose schedules were given here last month. 9CXC in Chicago handled several messages with WNP and is keeping a schedule for further traffic. 2CYX took a couple of WNP messages and forwarded them by radio, also making a schedule. 1FL took some from WNP through bad QRM but had better luck later in the month, taking ten messages totalling about 700 words from KGBB. He says that KGBB has the same note as WNP but without the wabble to it. S9SDNG doesn’t agree to this. In his report of working KGBB he reports the signals very unsteady. Probably both are right and 9DNG worked the ex- pedition AT SEA. 1CJ, 6BMW, 8c-NT, 1BMS, 8BHM, I

Page 100

VL, IBFT, 2APJ, 1AYL 9AEK and WNP during the past month. 8CEO, Vv. 8BKM and 3MV copied WNP at BES (Mr. A. R. Williams, Nyack, Bermuda, B.W.l. ex c3VH-9CS) re- an audibility of R3, unsteady and te. How long before Arctic expedi- ’ Williams says it’s a radio la after living in a dead-spot like ber 10, 9CKS took one from WNP, hicago via 9APN. WNP put on some radiophone en- benefit of 1ZK and 9CEJ and for might be interested. Commander thanked all the amateurs who life in the Arctic so different his first trips. At the time of the Bowdoin was anchored off ‘eter’s Canal. Abe Bromfield, who S. for a year, gave an idea of age sounds, relating his first . civilization when he landed trol and WCDN s new expedition will be on the eld Museum and Chicago Daily expedition to Abyssinia on the )° East Longitude and just a the Equator). The Abyssinian remmlar type of battery-supplied robably operate in both 40-meter eth bands. Amateurs in the United States and in foreign countries as well are de- pended on to do the usual fine work in handling contact messages and news dispatches from the ex- pedition. As the sending set will be a low powered one, it remains to be seen whether much of the traffic will be handled direct or whether it will come via the fellows in South Africa or in the Mediterranean countries. Most of the messages will be put on the air during the early evening hours—Abyssinian time of course. Press should be sent one of the nearest Chicago News offices by the amateurs handling it. If not relayed by radio to the Chicago Daily News, Chicago, lll., through U. S. amateurs, it should be delivered to other offices of the same newspaper located at 25 Piazza Mignanelli, Rome, Italy, or at 10 Boule vard des Capucines, Place de Opera, Paris, France. Mere is an opportunity to work a station in a new part of the world, handling traffic for and giving worth while service to another group of explorers, otherwise entirely out of touch with civilization. Hop to it, fellows. Keep your ears open for WCDN, GMD, or VOQ and take their traffic from whichever part of the world they may be iocated. Any special schedules, changes in plans, or further information received on these expeditions will be given out through A.R.R.L. Official Broadcasts and in the Official Relay Station bulletin. Don’t forget to send in a report for QST when you work or handle traffic with expeditions. Who is going to be the first to hook up with GMD and WCDN, the two latest expeditions out? SAYW, 9EIR, 8BCQ and 8CEO worked WAP dur- ing the month. WAP is the S.S. Peary on a month's cruise, located at MacGregor Bay, Ontario, Canada when worked. WAP was using a wavelength of about 40 meters NAVY DAY TELEGRAPHIC BROADCASTS N AY officially observed on October i 2 ear, under the auspices of the = Va United States, with the aeavy ebration and lending all possi- ‘le as amateurs belong to the Naval Reserve f us have enjoyed a pleasant fine experience afloat with Others have been stationed few weeks, while still others have frills from some of the stations uarters of a Naval District. the summer naval ra at land st participa located _ Call — NAR 8710 8030 3683- 7594 ropean 770 7300 8110 8070 7692 en arranged carefully so that ler of Freq. (kes) _W.L.(m.) (EST & GMT) _ Mes. QST has an equal chance of the Battle Fleet, Commander in Chief U. S. Fleet, Commander of U. S. Naval Forces in Europe, Com- mandant of the Seventh Naval District, Lt.-Comdr. Wm. J. Lee U.S.N.R., and Lt.-Comdr. F. H. Schnell U.S.N.R., operating the two Master Stations of the Naval Reserve, and Lieutenant-Commander Maxim U.S.N.R.. and President of our A.R.R.L., will all have special messages for amateurs that will be re- leased on Navy Day from different stations at differ- ent times in accordance with the following schedules: TIME From Comdt. 7th N. D. Sec’y of Navy Lt.-Cmdr. W. J. Lee, U.S.N.R. Comdr. U. S. N. Forces, Europe Lt. Comdr. F. H. Schnell, U.S.N.R. C-in-C, Battle 8:00-8:20 pm 0100 8:20-8:40 pm 0120 8:40-9:00 pm 0140 (simultaneously on both waves) 9:00-9:20 pm 0200 34.9 37.3 82.0 39.5 34.1 3.4 9:20-9:40 pm 0220 7.0 9:40-10:00 pm 0240 2 10:00-10:20 pm 0300 i a » 0320 Lt.-Comdr. H. P. Maxim, U.S.N.R. there are as few “overlapping” transmissions as to get on the Navy Day Honor Roll, which will 39.0 10:20-10:40 pm from the names of operators copying the several messages and reporting the text arters f the high men to receive special adcasts give us all an oppor- t and pride in our Navy. ficial Relay Stations received ad- Day broadcasts. Many of them ympetition and were listed in r Roll printed in December QST. ade the best record by copying the several different broadcasts letter of commendation from the rations. This year we have the nd everyone who reads this an- i to enter a similar competition. Navy, Commander in Chief The more messages you copy and forward to “HQ,” the greater the chance commendation from the Secretary of the Navy. Let’s show the Navy Department that we are able to do the usual good jog of everything we undertake. In about two hours and a half, all the messages will get on the air. How many will YOU turn in at Hartford for the final count? Please listen-in on the proper wavelengths on Navy Day, October 27, copy what you can, and mail it the next morning to A.R.R.L. Headquarters, Attention of the Communica- tions Department. This will show us that you have keen ears, that your wavemeter is accurate and your tuner sensitive, and it will enter you in the Navy Day competition, giving you a place on the Honor Roll. QST FOR OCTOBER, 1926

Page 101

Army Amateur Notes 2ND CORPS AREA—The organization of Auxiliary Radio Nets is progressing very well, everyone showing an interest and co-operating in every respect. It should be clear to everyone by now that any amateur can belong to the Naval Reserve as well as to the Army Radio Nets without any obligations requiring him to belong exclusively to either branch of service. Amateurs who have hesitated about applying for ap- pointments due to belonging to the Naval Reserve should hesitate no longer as there is nothing to prevent their station being part of an Army-Amateur Radio Net at the same time. 2SC keeps daily schedules between six and twelve P.M. using a 77 meter, crystal-controlled set on Governors Island. All A-A work so far as possible will be conducted on wavelengths between 75 and 78 meters in this Corps Area. Following is a list of the Auxiliary Nets that have been formed together with the principal and alter- nate N.C.S. in charge: Bronx, 2CYX (P), 2APV (A); Manhattan, 2EV (P), 2ABT (A); Brooklyn and Staten Island, 2PF (P), 2CLA (A); Long Island, 2AKV (P), 2KG (A); Eastern New York, 2PV (P), 2AGM (A); Western New York, 8HJ (P), 8ATR (A): New Jersey, 2ZB (P). The N.C. S. are organizing the stations that have been appointed in their respective nets, All amateurs assigned to these nets are now receiving their certificates, code charts and other instruction on procedure. Get information from your Net Control Station or send requests for in- formation and applications for appointment to your Army-Amateur Representative, Mr. David Talley, 2PF, 2222 Ave. O., Brooklyn, N. Y. 4TH CORPS AREA —A big proposition was put over in a big way by amateurs in the Fourth Corps Area. When the 122nd Infantry of the National Guard of Georgia went on its regular annual en- campment at Tybee Island, Georgia, 4RM, 4FC and ex4FF were on hand to do their part in keeping the camp in communication with Headquarters at At- lanta. At Atlanta, 4SI handled the work very ca- pably, making possible all that was accomplished in message-handling. A 650-watt bottle in a Hartley circuit was supplied by a 750-volt dynamotor. Six and twelve-volt storage batteries were used for fila- ment supply and to push the dynamotor. On arriv- ing at camp at 5 A.M. the tent was put up and also the two 20-foot gutterpipe masts. By 10 A. M. there were two amperes in the antenna and on listening on the pre-arranged hourly schedule with 4SI, the gang were elated to hear him calling frantically. Answering in approved fashion bDrougnt no results— speaking of life’s darkest moments. After further unsuccessful attempts the gang held a consultation deciding that as the rainpipe was a true vertical radiator, that the 40-meter signals were jumping over Atlanta due to “skipped-distance” effect. 4RM was left at the tent while the others ate chow and decided to try the receiving antenna on the trans- mitter (the high end was about 12 feet off the ground). Right after the noon schedule, came the first successful QSO using this arrangement. Later, a better antenna was strung between two telegraph poles which brought in better reports. Regular schedules were kept with 4SI, only two being missed during the whole period of encampment. Several antennas were tried and some of the schedules were kept on 80 meters where less trouble from fading was noted when clouds obscured the sun. A total of 542 messages were handled in both di- rections, the messages being delivered by telephone in Atlanta and answers returned on the next sched- ule. Several emergency messages were handled. One to the Chief of Police caught a man who had stolen a lot of money and taken the train to Atlanta. Two for Fort Screvens were handled via 4RM-4SI-WVR, and answers returned over the same route when the long wave set was unable to get in touch with Wash- ington, D. C. All supplies were ordered by radio and all rush official business was handled, as it was found that radiograms got replies in between ten and twenty minutes time, while the Western Union took about two hours each way to do the job. Everyone con- cerned is to be congratulated on putting over a real worthwhile achievement. 5TH CORPS AREA—Sgt. Stark of the 38th Signal Company, National Guard, at Camp Knox, Ky., tells us that in putting 9GX on the air, empty Coca Cola bottles were used as insulators and the set got out to Australia and the Philippines the first night. QST FOR OCTOBER, 1926 9ADK, 9CPQ, 9YBCC, 9DUC, 9BCA and 9EAI are al! at Camp Knox operating at 9GX regularly. FR5 is the U.S. Army experimental station located at the Headquarters of the 7th Observation Squadron, France Field, Canal Zone, and operated by H. S Cronkhite. FR5 may be heard right below the 40- meter band and Lieut. Dowman, Signal Supply Officer guarantees that all cards received will be promptly acknowledged. 6TH CORPS AREA—Most of the station in the Corps Area Net made a good showing for the month though service was crippled at some points where station-owners were away on vacations. At Mil- waukee, 9DTK gets the gold star for most con- sistant service with 9VD a close second. 9AZN at LaCrosse gets the gold star for consistency with 9ZY right on his heels. Short-wave stations were put in operation during the summer at Camp Grant, Ill. and Camp Sparta, Wise. 9DOX and 9AKY managed to QSO 9AFF with several messages from these points but had a difficult time of it. 8BMW at Detroit tried to keep on schedule but found some trouble in getting in touch on the scheduled nights The net stations at L-Ance and Lansing, Mich handled their traffic through 9AAW, using 40 meters without any trouble. The official traffic included a number of coded messages. 9AFF wants to be able to report every Net Station on the job by the time of the next report. It is hard to tell when another station will want a relief but with everyone who volunteered his station for an Army Amateur Radio Station doing his duty, more messages can be handled between Corps Area HQ and the various Net Contro! Stations or their alternates. 7TH CORPS AREA—The new 9BAY is nearing completion and will be the Net Control Station of the Minnesota Army-Amateur Net. A 100 and 1,000 watt outfit is used on 40 meters and a 50 watt CW and phone set on 80 meters. Four operators on duty five nights a week will roll up the message figures. 9BAY is located at the Armory building in St. Paul. McCord and Kock of 9BAY, together with 9BZP and 9DNX, did some notable work during the Na- tional Guard encampment (July 25-Aug. 9). Old 9BAY using 15 watts input and a 40-meter Zeppelin antenna was installed in a tent. In addition, a one- man portable transmitter and receiver was built into a suitcase 16” x 19” x 10”. This grip carried every- thing including all batteries, two head-sets, an- tenna, and message blanks. A UV201A tube was used with Ford-coil power, giving a signal of R99 in camp and on one occasion covering 500 miles in daylight. On several days, the portable was taken out in the field with the company and communication wit) camp established within five minutes. Durin: these periods messages were put through in next to nothing, flat. The officers in charge were highly enthusiastic at the good results and message-han- dling efficiency obtained and the four “ops” receive:! many compliments for the good work in this Corps area. A Naval Reserve Communication Division similar to that formed in Florida by 4XE is now bein organized in the 8rd Naval District. Drills start around Oct. 25th. All Communication Reservists in the states of New York, Vermont, Nothern New Jersey and Connecticut are requested to address Com- munication Division, U.S.N.R., Third Naval Distric*. 1711 Park St., Hartford, Conn., for further details In the First Naval District the organization of a Communication Division of the Naval Reserve is also under way and some regular drills with tactical! calls and Naval procedure is promised soon. 1KI 1ATV, and 1BIG are the charter Maine members and when three more men have been enlisted from Maine or New Hampshire, the drills will start. Write the Maine Section Communications Manager, 18 East Crescent St., Augusta, Maine for details of the works planned. If you live in Massachusetts get in touch with Mr. John M. Wells, 1ZD, Southbridge, Mass 1BIG and 1ZD are commanding officers of units i» their vicinities. Lt.-Comdr. Charles M. Kelly, Jr U. S. N. R. is organizing the entire First Nav: ! District so that regular radio drills may be conductec It is expected that the state of Rhode Island will b> taken care of next by a separate unit with Head- quarters at Providence

Page 102

Club Activities CAI The Southern California A.R.R.L. pienic v ered in these columns last month. We for ention the novel fish-finding contest whicl ire of the picnic. It ended in a controv whether frogs were fish which was not de SI awarded the 7% watter to 6CMS. 6GD archery. Ex a5AP staged an apple eating h was won by 6JI. 6RM got the 1,00 Transformer by winning the bum messag 6BLV gave two YL’s life mem- bershiy I Angeles Radio Club, and after an argun 6BQR and 6CMQ for the honor of escor home the party went home tired The 3} o Clab will award their Wouff Hong he best sixth district station to be choser e Pacific Division A.R.R.L. Con- T? 2» County Amateur Radio Associa- tior the air with a new transmitter. Proba atter will be used—call 6SV. The statior the air nightly, an amateur super- stat ' f trained operators. The Gang got behind the Radio St o and put A.R.R.L. over in great hape Kohimoos loaned a fine 100 watt transr receiver and all that was left to do wa e apparatus in the booth that was obtaine f Mr. Longeman and Mr. Heintz. 6BA ed in the jug and had special policen him all around the show. How- er ntive ham agility, he succeeded in eludir snd breaking open the sealed doors and he tenna wire out into the great open space as easy and traffic began to move as ti re trickled in. The station was license all 6EP for the week of the ex- hibit ge were filed in the week and me ransmitters assisting 6EP are still hot tr r the hook like old times. Code ard ted to all visitors at the booth ar \.R.R.L. supplies were sold. The ra the various signs and photos in ‘ a with visitors and let everyone know 4.R.R.L. and amateur radio in gen- era ar prominent visitors was piCDS& and k them all, Don Wallace, 9ZT-6AM. 6AGT 1 6DDN are certainly on the honor roll a t brass pounders on the job 24 hours a — Show. Next month’s traffic will show wh re CON)? At a recent meeting of the Twin City S.C.M. Nichols gave an interesting talk Handling,” and following his sug- gest members unanimously elected 1BHM as Re Mi ger of New Haven County. Plans have ed out allotting different territories to th mbers whereby schedules will be ar- range ations throughout New England. 1IBHM eciate the cooperation of stations who can ar ‘ es with one of the 20 New Haven and W traffic stations. Write him. Let- ters a @ out to arrange some of the sched- ules began in earnest September Ist. Each r as been supplied with a blueprint showir R.S. in Connecticut and when all the sched peration, we hope to reproduce the map her A e call letters represent 40-meter sta- tions a sed to indicate 80-meter stations on these n Other clubs are cordially invited to write the S ommunications regarding schedules with making relay work more interesting IV and effective are also welcomed. Address Mr. R. H McKendrick, 46 Center St., West Haven, Conn. ILLINOIS—Mr. Lloyd Grenlie, chief op with the Byrd Arctic Expedition, and formerly of Bellevue, D. C., recently addressed the Chicago Radio Traffic Association, giving a very interesting story of the expedition and telling all about his experiences with crystal controlled transmitters and receivers. The attendance at summer meetings has averaged about 35. The fellows all had a good time at the last Peoria meeting. Another meeting is planned to be at Starved Rock, Ill, on Sept. 19, at which the Statewise organization will be taken up further. INDIANA — The Indianapolis Radio Club had a picnic on Sugar Creek and 16 hams from Indianap- olis and 5 from Louisville attended. The club’s por- table transmitter kept the gang in touch with the outside world. All had a big time and will QTA again this fall. MICHIGAN—A representative bunch from South- ern Michigan and Northern Ohio met at Monroe, Mich., (half-way between Detroit and Toledo), in mid-July, enjoying a fine dinner together and having an FB get-together meeting. SANE, 8AVX, 8AVB, 8BN, 8BEN, 8BMD, 8BQC, 8BRV, 8CEP, 8COW. 8CVO, 8DCB, 8LO, 8VT, 8WO, 8ZZ and 9ADZ were among those present. 9DXZ was visiting 8CEP with whom he has kept a schedule for about six months. It is planned to hold further meetings at frequent in- tervals. MAINE—The Queen City Radio Club were recently given a clam bake and general good time by the Bar Harbor Radio Club. The Bangor gang were met at the steamship wharf by members of the B.H.R.C. and escorted by autos to I1BGS, the club’s radio station. A drive to Sea Wall followed and after an inspection of the Navy Radio Station the bunch had an FB clam stew on the beach. 1BDB was the self- appointed steward, former C.P.O. at NBD during the war, and everything was planned out to a nicety 1AQL, president of the Q.C.R.C., was awarded the championship for stowing away the stew. A trip around the island ended with an inspection of the compass station at Otter cliffs. NEW YORK—The Radio Association of Western New York will again, as in the past two years, have a booth at the Radio Show of Buffalo, Oct. 16th to 23rd inclusive. In the past two years an approximate aver- age of 100 messages were handled each day. As it is expected this average will be exceeded at the forth- coming show it is earnestly requested that Amateurs watch for traffic from Buffalo as much as possible during this time. Stations wishing to arrange sched- ules should write SADE, stating wavelengths and time their station will be available. This should be an opportunity for live stations to materially increase their message totals for October. The Radio Club of Brooklyn has been holding in- formal meetings during the summer. Meetings will open in the fall with some excellent talks on crystal controlled transmitters. NEW JERSEY — Don’t forget the banquet to be held at Hotel St. Francis, Newark, N. J., Oct. 16th under the auspices of the Amateur Radio Association of Essex County. See these columns of September QST for full details. Come and bring someone with you, OM. TEXAS—tThe Third Annual Hamfest of the Bexar County Radio Association was, as usual, a huge success. The gang visited Fort Sam Houston, the Bell Telephone Company’s plant, broadcasting station WOAI, and several amateur stations, including 5HE. Visitors from all over the state were on deck and many took advantage of the chance to take the ex- amination given by Radio Supervisor DuTreil. who came all the way from New Orleans to help. After a splendid four course dinner, 5UX acted as toast- master. Addresses were made by President Fitzhugh and by the Radio Supervisor. The Army-Amateur Plan was discussed by Col. Gibbs, C.S.0. of the 8th Corps Area. The Communications Department organ- ization was explained by S. C. McSahm, 5GW. A CQ contest, a code speed contest and a drawing contest were part of the program. 5ABQ provided music and movies for the gang. Capts. Stoner and Ellis of the Signal Corps and Mr. L. D. Wall, Army Amateur Representative, were present from Fort Sam Hous- ton. The tables were equipped with buzzers and keys to serve those who find code easier than the spoken word. The radio dealers of Fort Worth and San Antonio generously provided prizes for the various contests. The event will long be remembered as a pleasant one. San Antonio hospitality is a splendid index to A.R.R.L. fraternalism and friendship. QST FOR OCTOBER, 1926

Page 103

OFFICIAL BROADCASTING STATIONS JOUR attention is called to the Fall schedules of the League's Official Broadcasting Stations. These stations have agreed to observe the wavelengths and scheduled times of transmission, making it pos- sible for you to select a station, to listen for him ata certain time and on a certain wavelength, and to receive the Official Broadcast. A good number of stations send the broadcast so you may “run across” a broadcaster in the course of ordinary listening. We hope to have a more complete list for publication in November QST and to announce a competition at a later date to determine the most consistent broadcaster and to find where and when the broadcast can be copied. As soon as enough additional Official Broad- casting Stations have been appointed by the S.C.M.s to make a contest profitable, the details will be an- nounced. Each week, the latest news of expeditions, schedules of tests that are being run and other important amateur news of the hour are made into a broadcast which is sent to operators of Official Broadcasting Stations weekly. The broadcast has a release date slightly later than the mailing date so that the ma- terial to be sent can be in the hands of each operator at the beginning of the week of release no matter in what part of the country he is located. If you have a station that gets out well and feel that you can send the broadcast regularly at one of the three times a day noted at the head of the columns, by all means apply to your Section Communications Manager (his address is on page 3 of each QST) for appointment as O.B.S. giving him the information about your station. In particular, on the 18.7-21.4 and 150-200 meter bands more stations are needed in all parts of the country, especially in the seventh radio inspection district. The operators of the various stations are willingly giving up part of their time to this work and will appreciate it if you will drop them a card saying that you copied the Official Broadcast from them on schedule. O.B.S. are requested to send the broadcasts slowly enough so that they can be copied by beginners and with steady, even keying. A number of folks on the West Coast copy 6BJX's broadcast regularly one day a week, and a number of people listen to certain of the broadcasters right along for code practise. We will be pleased to receive any suggestions regarding ways of making this service through the Official Broadcasting Stations of still more interest and value to you. Only thus can we improve. Wavelength Days of (Local Standard Time) Transmission Call 7.00 pm 10.30 pm 12.30 pm 1AYJ+#7 — 1IBEP RO R0 Mon., Fri 1BFT 39 Sat., Sun. IBIGS&§ Mon., Wed Fri 1BQD 39.7 Daily ICKP 34 Sat.. Wed IGA 37.85 Tues., Thurs IGA 18.1 Sun. 10Cct 83 —_— Thurs., Fri., Sat 10C 83 83 Sat. 2APV 37.57 37.57 Mon.. Thurs 2CQZ (special schedules on 40 80 and 180 meters) 2CTH?t - Tues., Thurs 2PF 37.6 -—- Mon. 3ALE 40 78 Mon., Fri 3SAPV 20 Sun. IBWJ 41.5 Mon., Wed., Fri. 3EL 40 Mon., Wed., Fri 3EL 52.5 Wed. 8LL 38.1 Mon. 3XAN?t - Mon.. Thurs Pr-4JE 40 - Tues., Sat. 4JR 84-39.3 Mon., Wed., Fri 40OB 40 Wed., Fri 4TR 40.03 40.03 Mon., Wed. {TR 80.06 80.06 Tues. 5ACL 38.5 Sat. 5ACY 38.2 Wed., Sat 5ADA 37.5 Sat. 5GJ 38 Mon., Thurs 6ANO 41 Daily except Sun 6BIX§ - - 6BUC 39.75 Sat. 6CCT 39 39 Mon., Tues., Fri., Sat 6CLP*** ons Sat. 6U0 80 Mon., Wed... Fri QST FOR OCTOBER, 1926 6VC** Mon., Wed., Fri. 8BHM 42.5 85 170 Sun., Wed., Fri. 8BSUS$$§ 40 Mon., Fri. 8CEO 80 mon., Wed., Fri 8DME 38.5 Tues., Fri. 8ZH 76 fues., Thurs. 9ADR 40 40 Thurs. 9ADR 20 Sun S9AYK 79 79 Tues., Thurs. 9BKJ 39.5 lues., Thurs., Sat. 9CET* Mon., Thurs. 9CPO 10 Wed. 9CPO 40 Sat. sCVRIiti Fri., Sat 9DPJ 82 Mon., Wed. 9DPJ 38 Sun 9DWK 200 Tues. sDWK 200 Sat 9DZI 38.5 37.8 Sun 9DZR 86 -_— Tues... Fri 9EGU $7.5 Mon., Wed., Fri 9HP 39 Tues., Fri 9KZ 20 Mon., Wed., Fri 9KZ 40 40-180 Sat. 9RR 82 Tues., Thurs 9ZC 84 Sat WJIBA 206 8 Mon. WOAX lues., Fri. (voice) t+ ° 1l pm, 38.6 m. ** 7.30 and 8.45 pm, 38 m. *** 9.30 am, Sun. N 6 pm, daily except Sun., $§ 42.5 m., 6 pm. $§§ 9.00 pm, 40 m. ? 12.25 pm, 38 m. e tt 12.20 pm, 240 m. ttt 8 and 12.45 pm. 41m.—8.30 and 80 m. Tues. Thurs., Fri., also 8.30 pm Sun. on 80 m. 6.00 pm. t 6 pm and 9.30 pm, 38 m., tt 12 m., 38 meters. 40 m 1 pm Sun., 19 m. tt tte NOTICE Te All A.R.R.L. Members of the Southern Minnesota Section of the Dakota Division Mr. D. C. Wallace, 9ZT-XAX, your newly-elected Section Communciations Manager, has been forced to resign due to his changing his location to the Pacific Coast where he already is making plans to get a big “six” station on the air. Not only will 9ZT be missed by everyone but Wallace's change in location will be a distinct loss to the Section and to the entire Dakota Division. Your loss will be California's gain. Never- theless that loss will be keenly felt. Nominating petitions are hereby solicited in order that an election for an A.R.R.L. Section Communica- tions Manager for the next two year term of office may be held in the Southern Minnesota Section in accord- ance with the Consitution. Five or more A.R.R.L. mem bers living in any section have the privilege of nomin- ating any member of the League in their Section as candidate for Section Communciations Manager. The nominee and signers of the petition must be mem- bers of the League in good standing. There is no limit to the number of petitions that may be filed but no member shall sign more than one such petition. The proper form for nomination was shown on page 45 of April, 1926 QST. All such nominating peti- tions must be filed at League Headquarters, Hartford, Coon., by noon of Nov. 2, 1926 for the petition to be valid. Members are urged to take initiative and file nominating petitions immediately for the man of their choice. —F. E. Handy, Communications Manager. Amgust 16th marked the formation of the New Zealand Association of Radio Transmitters. There has been need of an amateur society at the head of affairs in N. Z. for some time and now we are very happy to welcome the new organization. Mr. Shrimpton (2XA) has been elected President while the other officers are Mr. Jorbel] (z1AX), Mr. Salt (21XI), Mr. Browne (z3CQ), Miss Bell (z4AA), Mr. Crockett (24AM), Vice-Presidents. and Mr. Roberts (z1AE), Secretary and Treasurer. Communications are welcomed and should be addressed to Mr. R. V. Roberts, Sec’y N.Z.A.R.T., Box 779, Auckland. N. Z, This information was received by radio via 5AUZ and zl1AO and we hope that further reports come through in time for our I.A.R.U. columns next month. Vv

Page 104

2 OR OI IIOIDIDIDIDIRIDIRIDIRIBID IRI IRIE ii sie sie aie

© * . John Berg, Jr.—SDWN 4 * 482 Willow Ave. +4 Pierre, So. Dak. ¥ 7 { Del. 27 Rel. 840 Total 888 ¥ cane ROO IOIRIDISIBIISISISISIRIRIRISISIDR IRE S POUNDERS’ LEAGUE Cal Orig. Del. Rel. Total spw? 21 27 840 888 9EK 397 26 144 567 1IBIG 92 122 317 531 aDHX 97 48 362 507 6Bx a Be Cc. 8, Taylor 5.49 4.80 232 101 743 1076 W. Pa G. L. Crossley - 4363 989 Ff & 16.00 15.33 527 3: 26 2288 31: 31 CENTRAL Sryenien Ill W. E. Sct.weitzer 3.59 6.12 125 135 434 704 Ind. D. J. Angus 3.28 1.35 132 135 334 633 K D. A. Downard 16 74 CMTC KC 2S C81 Mich. Cc. B. Darr 90 3.20 87 28 36 177 Ohio H. C. Storck 3.73 6.17 1389 83 516 738 Wise Cc. N, Crapo 5.59 2.58 506 148 422 1076 17. 20 20 16 996 533 1762 3359 BELTA DIVISION Ark Dr. L. M. Hunter - _ La C. A. Freitag 37 20 1 7 12 27 Miss. 7. W. Guillet 17 21 38 4 20 62 Tenn L. K. Rush 194 27 —_ — 88 648 68 39 11 382 127 DAKOTA DIVISION No. Dak F. J. Beck 05 93 z2— 2 4 No. Minn Cc. L. Barker 1.80 (included with S. Minn.) So. Dak G. R. Moir 5.73 1.31 73 40 1031 1126 So. Minn. 2.23 2.30193 78 174 445 8.01 6.34 268 118 1207 1575 HUDSON Soreeee E. N. ¥ Earle Peacox 24138 40 486 664 NYC&LIF. H. Marden 5 26 2.79 397 204 535 1023 No. N. J A. G. Wester 69 3.53 28 21 89 136 9.31 8.56 563 265 1110 1823 MIDWEST Biviston Iowa L. R. Huber 1.07 7 7 #120 #174 Kans. F. 8. McKeever 59 1.42 29 31 54 (114 Mo L. B. Laizure 2.01 1.92 64 47 281 392 Nebr. c. B. Diehl 77 1.37 -— — 153 4.26 5.78 140 85 455 833 NEW ENGLAND DIVISION Conn H. E. Nichols 91 161 26 46 #106 178 Maine Fred Best 5.79 75 407 166 562 1135 N. Vv. W. Hodge 69 75 37 22 74 «#133 E Mass R. 8. Briggs 6.00 2.66 337 201 679 1178 W. Maes A. H. Carr 9 2.10 54 32 199 186 R. I. D. B. Fancher 59 81 5 8 S52 vt Cc. T. Kerr 17 68 22 2 8 32 16.00 9.36 888 457 1581 2937 QST FOR OCTOBER, 1926

Page 105

NORTHWESTERN Sevres Alaska L. H. Machin — Idal.o K. 8. Norquest 38. report but no traffic Mont. A. R. Willson .57 17 48 320 382 Ore A. ©. Dixon 77 1.07 25 87 “41 153 Wash. Otto Johnson 1.00 2.04 34 30 132 196 1.77 4.19 59117 173 349 PACIFIC DIVISION Hawailj K. A. Cantin 2.85 1,16 364 121 102 587 Nevada C. B. Newoombe 31 28 9 5 48 62 So. Sect. L. E. Smith 11.27 5.95 520 554 1137 2211 Sect. 4 F. J. Quement 129 .65 80 39 95 214 Sect. 5 F. J. Lorsheter 1.40 Sect. 6 St. Clair Adams 16 15.72 9.60 973 719 1382 3074 ROANOKE DIVISION No. Car R. 8. Morris 751 .64 35 15 92 142 Va. J. F. Wohlford 033 1.50 4 2 985 W. Va. Cc. 8. Hoffman 1.14 1.56 47 22 162 230 1.92 3.70 86 37 256 378 ROCKY —pteiee DIVISION Cok, C. R. Stedman 5.21 1.20 _ - 985 Utah-Wyo. Art Johnson 08 96 5 1 10 16 5.29 2.16 5 l 10 1001 SOUTHEASTERN DIVISION Ala. A. D. Trum 1.96 49 24 75 «#148 Fla W. F. Grogan 1 18 1.52 50 59 117 231 Ga.-8. C., eH. L. Reid - 1.44 _ —_ 1.94 4.92 99 83 192 879 WEST GULF DIVISION DIVISIONAL REPORTS ATLANTIC DIVISION i he oe PENNA.—SCM, H. M.Walleze, 8sBQ— The usual gang are on the job. Reports came through in fair shape, but many old ORS’s still hold out. New appointments have been made. If you don’t have your new one, you don’t have any. All old appointments are now QSKed. A very few are on the inactive list. If you are active, you deserve an ORS, but reports simply muust be had in order to carry on. It is not too late to stage a comeback. Get busy, fellows, and get reports in and you will be taken care of if you show the proper spirit. No applications have been received for OBS, 0-0, ete. How come? The 80 meter sluggers hold the lead with 70% of the traffic. 40 M struggled through about 20% and those on both bands had 10%. 3ZM is the only one on the 3 bands—but you will have more company, OM. The SCM and a few of the old timers expect to get back on 200 for a little old time stuff—snappy work—rag chewing—CQ— less calling. All those who can put 20 per down with QSZ, are invited to come along. If you are not an old timer, you will get a new thrill—you will anyway ! 8CMO gave 8EU a chase this month. 8CDB leaves us to join the Western N. Y. gang for the winter. Sorry, OM. 8BIR reeled a gang out, aided by a new radiating system. SHD handled Official Sesqui traf- fic. (Sunday Ball scores? Hi!) 3AITY pumps out Police over with ‘Flyers’. 83ADE is on the job early mornings. S8AVK moved to Montoursville, but kept going. 8CGZ almost made the BPL this month. 3BUV is busy. 3LW continues good DX, but not so much traffic. 83AIG has a new antenna. 3SM was south last month but had a nice total. 3AFQ got a few on 40. 38BIT must be making a good job of rebuilding—he is still at it. 8QY blasted his tubes. 8ZS is home again and ready to bust out. 3VF has bad WX. 8BLP keeps going. Punk tubes gave 8BFE trouble again. A load of work kept 8BQ off the better part of the month. A new 50 watter kept 3BLC off, A bottle went west for 3AWT. 8ZQ is active but leaving for school. A last minute report from 38ZO carries a nice total—and saved his ORS. Hi! Power leaks raised thunder with 8BSZ. %8BVZ is DXing but promises traffic next month. That’s better. 8CW ‘canned’ his YL—again. Moxey of 3BFL keeps skeds wtih another Moxey—3BVZ. Family affair? The op of 8WH says their “vacation” is over. About time, OM. IF ANY OTHER SECTION HAS A GREATER NUMBER OF BRASS POUNDERS THAN THIS (SEVEN of "EM) TALK UP. DON’T LET ‘EM KID US GANG—KEEP MILES AHEAD!!! Traffic: 8EU 272, 8CMO 267, 3ZO 172, 8BFE 161, SBSZ 127, 8CW 122, 8CCQ 115, 3SM 92, 8CGZ 90, QST FOR OCTOBER, 1926 No. Tex W. B. Forrest :987°2.41 18 13 45 76 So. Tex. Ek. H. Sahm .249 1.29 22 9 14 145 Okla. K. M. Bhret 823 .67 118 15 28 161 1 45 4 "37 158 37 87 282 MARITIME DIVISION N. B T. B. Lacey 418 56 — -_ — Nfid. Loyal Reid - 07 -_— — _ N. 8 W. ©. Borrett 066 .18 3 3 6 12 P. EI W. A, Hyndman 123 .065 10 2 140 26 609 .80 13 5 20 120 ONTARIO DIVISION Ontario W. Y. Sloan .414 1.60 $1 QUEBEC Division Quebdbee Alex Reid .833-. 55. — - 46 VANALTA DIVISION Alberta 19 included in below B.C A. Hi. Asmussen 133 .988 10 2. 14 3 PRAIRIE DIVISION Man F. E. Rutland 22 - Sask. E. L. Maynard — 51 - - .73 TOTALS FOR COUNTRY Originated Delivered Relayed Total 4,824 2,796 10,569 19,521 83AWT 36, 3AIG 37, 3BLP 32, 8CZQ 17, 3VF 16, 8CDB 78, 3ADE 73, 8DIR 69, 8AVK 60, 3AUV 52, SBQ 16, S8AIY 15. 8AJR 13, 3ZM 12, 8WH 12, 3HD 8, 3BVZ 7, 3BFL 7, 83AFQ 6, 3LW 5, 3BUV 4, 8BLC 2. SOUTHERN NEW JERSEY—SCM, H. W. Densham, 8EH, 140 Washington St., Collingswood, N. J.—3BAY reports that his set is down temporarily for repairs so that little traffie was handled during the past month. 8BWJ handled one S8BEI reported to HQ. We want news from all stations in this district for these columns. The SCM believes that most of the gang are on vacation and forgot to report. All live stations in Southern New Jersey should send a report for QST to the SCM, whose address is given above on the 26th of each month. Send in your traffic report, gang, and let’s show the other Sections some actiye competition. The Section needs some live wires to handle the new ORS appointments and to put out the weekly ARRL broadcast. Applications are welcomed by your SCM. WESTERN NEW YORK—SCM. C. S. Taylor, 8PJ —Western New York hams have been globe trotting during the Summer. 8AGW has been in Europe operating a Salty ship. S8NT has been touring the West with his father. 8PJ, 8CAN and 8DPL had a wonderful trip on the Destroyer U S. S. King. 8ABG has returned from Milwaukee, Wis. S8AVR is back from his vacation. 8BCP is back with the gang again. BQK has been away from home but is now back on the job. 8CNX will be on strong again having just returned has rebuilt his station. 8CVJ was away and will be going strong soon. Those working foreigners are 8ADE, who worked Tasmania and Holland. 8AHC worked Australia, France, Mexico and all U. S. Districts. 8BHM worked Australia and WNP. 8BLP keeps schedule with 2CHD, 2APT, 8DGV, 8DHX, and 8FV, 2COH works 70% of stations on UX210. 8BQ worke Peru and handled slight traffic. 8CCR works Australian 5LO and NZ 4AM. 8CNT handles traffic via WNP.-1BMS. 8CNX is rebuilding and experimenting with anten- nas. S8DDL-8MU works a South African station. FB, OM. 8DHX works several stations on a 201A. 8DME keeps schedules with 8AHK and IANA. 8DRJ works Europe and Australia every day. 8DSI is re- building the set. S8SAOB reported for the first time in many moons, 8AKS is building a new mast. 8BCP is using a 250 now on 40 meters. He is on from 11 pm to 1 am. He is also after 10 new subscribers in the ARRL 8BCZ is working hard trying to complete a new radio shack for the fall season. He will be on 40-80 meters. 8SBEN has a new 203A and will be hot after traffic. He has been rebuilding and is on 37.6 meters. 8BHM will be on 20, 42.5, 85 and 170 m. after Sept. 1 S8BLP has fine success on 76 meters 8CCR is going to change to full wave rectification. 8CNH wants schedules with Northern New York. vil

Page 106

SCNX now states ti operator to wor has beer Kenetr banne busy York was and Spy saved Canad Traffi scvVd aDRJ SBGN a kene his hk men tines new SCTF are he ment there is is hav meter B ba contre are or fone would aCEO changir cane were weekend and ebuilding and is ready for traffic expecting 50 watters soon. He BM will be going strong as he is a new ng on the circuit. 8DME expects waves on account of QRM. 8sDSI his receiver. He also put in ion September promises to be a m reports as the gang are sure mn shape to make Western New trict in the USA. While &8PJ r a few hours, 2ZL, 2BRB, 2PF worth while. 8UL visit ICE! becomes hero He m drowning on his vacation in 7, SBLP 155, 8BHM 96, 8AOB 61, SAHK 45, 8AHC 23, 8CVP 17, 14, 8BQK 10, 8CCR 8, 8ADE 7, SCNT 38, 8AKS 2, 8HJ 2. ENNA—SCM, G. L. Crossley, 8XE— this Section in effect Sept. 1 for the SCM for three consecutive pending After a little weeding hat we will have a 100% section. for the month was very light be- weather and storms causing QRN, for a pickup in the near future. all stations that have made ap- previous to this and have heard apply again to him and action records of the SCM are not com- previous to his taking office. sCIX, 80N, 8DOQ, 8CUH and tT the air due to QRN and heat. ff the air due to serious illness of wish her a speedy recovery, OM. sir because the BCLs can read his 5 flicker system of the lights. Hi. YH, &8GI and &BDJ are off the air SXE is still at the same process ES and 8DHW are now operating “BBL tried a Marconi and went SCTF is changing his antenna » make it better. 8GK has put in tr plate supply. 8AGQ had a hamfest at the month. 8AKI has been experi- Jenkins machine. 8AOS, 8DHN are the Section this month. 8AIF, 8BGI, GU, 8VE, 8DCV, 8AXD and 8ABM have been doing their allot- 8ABM and 8CWT ciaim DX but not much traffic. 8CGP ry supply on 80 meters. 8SBDJ scess using a 201A on 40 and 80 s crystal] controlled M. O. in the » regular schedule with a crystal meters SBGB, 8DOB and 8BVK fone. 8BRC and 8BUN are on band SRC is on 177 meters and f the hams to call him on fone. plug-in xmitter coils for band handled PX on the Florida Hurri- M with a 3AWH, first operator at 8XE ‘ h Ohio State ARRL Convention the ‘ 0-21 That was some convention gang of hams (kids 8 yrs. old) he amusement park such as Euclid amusements free gratis. Did we guess once—that’'s alll SBBL ,. &GK 5, 8AGO 3, 8SF 37, RRDJ 2 OK | and A ork CENTRAL DIVISION M. D. J. Angus, 9CYQ—9BNP leads using 203A on 1000 volts, 82 m. al, hands in a bunch of messages. R from New Jersey to Hawaii with a X works army schedules exclusively. new antennas for 40 and 80 meters. « in a 208A and 1000 volt MG set. been appointed RM in Dist. 3 and is at district in shape. 9DDZ rebuilt and equipment. 9CMJ put up a vertical n't worked anyone since. 9AEB “is utfit for the winter rush. 9AMI has building and is going fine on 40. 9DLM at South Bend. 9%EJU is putting in a meter set. 9TG worked 15 stations time at the pienic of the Indianapolis 9DYT worked 9GX at the Army camp. 9QR changed from 40 to 80 meters. 9BRG’s best contact is Marion, Ind., now. 9BDK is off for two weeks moving. 9BK has remodeled for 40 meters. 9DHJ put in 2 210s to work on 40, 80 and 170 meters. 9EJI worked 9GX at Camp Knox. 9CP is off for a month while taking a trip through the west. 9BSK-9DVS-9ZQ gets out all over the world on a 210, 20 meters and 30 watts. 2AU and 9BSK QSO on 5 meters. 9DIJ is getting his 50 perking now. 9ES opened up again at Terre Haute. 9AXO is a new station at Terre Haute trying for an ORS. 9DOD and 9QS are new stations at Rosedale, Ind. 9BDT is going good. 9ABW, 9AVO and 9AIN report traffic and expect to be going good by fall. 9BCM is trying for an ORS and changing from 40 to 80 meters. 9EGE is a new station at Connersville doing good work on 40. 9RS is on 80 meters and getting out good. 9CMQ is still having trouble with the set on 40. Better rub a little butterfly oil on the antenna. 9CYW just blossomed out with a Hertz and good luck. 9EAX just started and is going fine. 9ASJ just got going again with a new shack and pole. Traffic: 9BNP 160, 9CP 127, 9DPJ 97, 9GX 36, 9BCM 29, 9BKJ 22, 9EJI 22, 9CNC 20, 9CYQ 138, 9EBW 16, 9ASJ 15, 9TJ 15, 9BRG 8, 9QR 8, 9DHJ 8, 9ABW 7, 9EJU 6, 9AXO 5, 9AEB 4, 9CHT 4, 9DSC 4, 9CMJ 2, 9AMI 2. KENTUCKY—SCM, D. A. Downard, 9ARU—If you fellows want to get your state out of the rut, each of you will have to do his part. Remember—failure to report three consecutive months and—blooey! 90X means to handle plenty of traffic. He is arranging several schedules and keeping them. 9DTT has a schedule with 9DGY. 9HP is using a Grebe CR 18 and says it’s the best yet for the short waves. 9%AZF, one of Kentucky’s YL’s, is attending U of K at Lexington. 9CMW is attending the U. of Texas. 9ALM reports having an enjoyable time at Miami. 9EI, ex ADM of Kentucky, paid the Louisville gang a visit August 29th. After visiting the hams around the Fall Cities he, 90X, 9BRK and 9ARU dropped in on 9WU to try to locate the reason for his failure to get out. When they left, the BT coupler out of WU's receiver was up on the shelf with the transmitter serving the purpose of RF choke—but the transmitter worked. Didn't stay to see what he was going to use for a receiver. Traffic: 9MN 11, 9CMW 4, O9DTT 4, 9HP 2. OHIO—SCM, H. C. Storck, 8BYN-—-8BPL heads the traffic total for Ohio. 8BAU, 8GZ, and 8CBI just returned from Camp Perry. 8BYN is at Camp Knox at present. 8CBI is acting SCM for a month and he says not to blame 8BYN for any mistakes in the re- port. 8BCE has been doing some good DX this month. 8PL is doing good with his crystal control set. Let's all get together next month and bring up the traffic totals for Ohio. 8GZ has been away so not much traffic handled. Traffic: 8BPL 180, 8DBM 131, 8AEU 50, 8CQU 47, SCWR 237, 8BFO 31, 8BYN 29, 8AZU 27, 8BKM 24, 8VSW 20, SRY 19, 8GZ 19, 8ANB 16, 8AEK 15, 8RJ 10, 8BNA 8, 8AVX 7, 8ZE 7, 8ADA 7, 8CBI 7, 8BSA 6, 8DSY 6, 8DQZ 5, 8PL 5, 8DIA 5, 8DGT 4, 8sWX 4, 8DRX 4, 8DEM 3, 8DND 2, 8CMB 2, 8KC 1. WISCONSIN—SCM, C. N. Crapo, 9VD—9EK took an enormous jump this month, carrying off all honors in the state. 9DTK comes second, having consistent schedules with 9EK, 9AZN and 9AFF, and handling Army and Tourist traffic. 9AZN deserves third place but we cannot say exactly what his total was as his report is not in. 9DOL, therefore, comes third. 9DLD sends a very interesting report giving the doings of the gang in his district. He entertained 9DLQ and ex 9MH this month. 9BWO says he worked HU FXi showing that the summer wx is not so bad. 9EMD wants schedules at 6 PM Tues., Thurs. and Sat. PR and Cuba are locals now. 9BJY is using a UX210 on 40 and works them all. 9EAN just got back from Yellowstone. 9AEU says that past operating condi- tions have been terrible in his section the past month but improving a bit lately. 9BIB is operating on 80 and 150 and still building the CC set for 20 and 40. 9AFZ hasn't changed his antenna in two months. 9EGW has been repairing and is now ready for busi- ness. 9VD is still sticking on 80 and busting up the BCLs. 9AGU-9ABM, 9EHM, 9BVA. S9BKR, 9CIU and 9DKA reported but no traffic handled. Traffic: 9EK 567, 9DTK 206, 9DOL 144, 9DLD 48, SBWO 29. 9EMD 18, 9VD 15. 9CFT 12, 9BEK 11, 9BJY 8, 9EAN 7, 9AEU 4, 9AFZ 4, 9BIB 3. MICHIGAN—SCY§M, C. E. Darr, 8ZZ—8ZT of Pontiac QST FOR OCTOBER, 1926 90OX 10,

Page 107

is back and will use 100 watts. A new M. G. will make it perk. 9EAY has been away but is at his set again. He is putting in a new radiating system. SDIV will be back soon after a prolonged vacation. SAMS put up a Hertz Antenna and in four hours worked coast to coast and to the gulf. 8DLD also has been doing good work. 8CEP uses raw AC on ac- count of his S tubes going west. His new Grebe CR 18 pulls in the DX. 8PF says a “sink” is the bunk. ND so he has gone back to chemical rectifier. SAUB of Grand Rapids is doing nice work on 40 meters. 8BOK is back from an extended vacation. Michigan is a great vacation state—the traffic reports show it, too. Traffic: 8CCM 88, 8CEP 44, 8AUB 14, 8ZZ 10, 8ZH 8, 8PF 7, 9EAY 6. ILLINOIS—SCM, W. E. Schweitzer, 9AAW—9PU will be off the air this winter due to the fact that the operator is going to college at the University of Illinois. 9PU and 9AOA will operate a new set there under a new call. Schedules have been kept with 9DWN. FB, OM. 9CSB has rebuilt his transmitter, which now uses 50 watts. A vertical antenna sent the signals to Australia and Sweden. 9AFF has in- stalled a WE 250 watter and is keeping schedules with all the sixth corps Area Army stations. Traffic from Australia was handled. 9BWL has been active and will be appointed an ORS. 9DXZ also has been pounding the key consistently this month. 9CxC is rebuilding. Schedules were kept with 9DWN and 9PU. 9ELR is looking for schedules. Write him. A new Hertz keeps the sigs poking on 20, 40 and 80 meters. 9APY has kept schedules with SCEK and also 8sRY. Army messages for Scotts Field and the Chicago Daily News were handled. 9DAF kept schedules with 9AGG, 8SAWQ, SCYW. 9ALK worked a C and Z. Was away on his vacation most of the month. 9EHK is re- building the transmitter for winter traffic. 9BHM insulated the transmitter on plate glass and has added 6 more MFDS to his filter. 9DZR is changing to 40 meters and will be going good by Oct. Ist. 9AXF has been working on a new idea and promises to be on regularly on 80 meters. 9AJM’s best DX this month is TIT. 9DGA reports he finds the 3rd harmonic better than a Hertz antenna. 9AAE will be on the air with 100 watts generator supplied and working on 40 meters with a Hertz Antenna. 9QD reports things slack this month. 9AHD reports bad power QRM so is going into partnership with 9ATP using 10 watts DC. 9DZR reports hearing WNP but he is hard to copy. He will probably use 100 watts on 40 meters this fall. 9BDI reports he will have 50 watts by Xmas. 9CSW is building a new short wave receiver. 9ALW, altho not handling any messages, worked good DX. SAAW was on consistently with 500 cycle sup- ply after the DC generator and the 60 cycle AC trans- former went west. 9DQR tried a Hertz antenna without success. 9BKX just installed a 200 meter fone set and will be on the air soon. 9DDE will be back on the air again the last part of September. S9HW is old 8AAZ, who is back on the air once again with ten watts on 40 meters. Married and living in Chicago, he can still find time to pound the key when he doesn’t have to wipe dishes. Hi! Traffic: 9PU 329, 9CSB 63. 9AFF 56, S9BWL 50. 9DXZ 40. 9CXC 30, 9AAW 30, 9ELR 23, 9APY 20. 9DAE 15, 9ALK i0, 9EHK 9, 9CSL 9, 9BHM 28. 9DZR 5, 9AXF 2, 9AJM 2, 9DQA 1, 9AAE 1, 9QD 1 DAKOTA DIVISION TORTHERN AND SOUTHERN MINNESOTA— 1 SCM, C. L. Barker, 9EGU—Since D. C. Wal- lace, late SCM for the Southern Section of Minnesota, is leaving to locate as 6AM at Long Beach, Calif., the reports from the two sections are as one this month, pending election on a new SCM for Southern Section. It will not be very long now until the SCMs will have their Route Managers ap- pointed, and as a starter it might be well to suggest that we all start to arrange schedules—ones that we will keep without fail, and ones that will be reliable, trustworthy and valuable. Start that now, OM and things will be much easier when the Route Managers start to line things up. S9APF use of higher power. sign 6AM from now on at 109 W. 8rd St., Beach Calif. involving the 9ZT is no more so Don will Long We certainly are sorry to have him leave us, but wish him the best of luck. 9CKI burned is completing some changes, out all his tubes and won't be on until the last QST FOR OCTOBER, 1926 part of September. 9CPO is again rebuilding, putting in a 50 watter again, using the REL inductances. 9ASW is changing to the 4 coil Meissner and ex- pects to have much more kick to his sigs. 9EHO is waiting for batteries for his plate supply. 9BMX has been too busy to be on much, and almost forgot the 26th. Hi. 9COS is still waiting for an adjustment on his H tube. 9SF has been very busy arranging schedules. FB. 9BNF has left Minnesota for Washingten D. C. to take up a radio course. 9CUM works a large antenna on the 3rd harmonic with excellent results. 9AIR suffered terribly from bad weather conditions the past month. 9EFK uses a glass panel mounted 7.5 watter and is on every noon and evening. 9KV was operator on the USS Baducah for all the cruises. 9DZA uses a Zeppelin antenna with good results and is all set. 9CTW had considerable trouble the past month, but is on regularly. 9DGE is back on the air regularly again, after a short vacation in St Louis. 9CWA steps out well, and works on schedules. 9EGU thought his 2 year old 203A had gone west right, but a severe thumping of the tube against the knee jarred the filament loose from the grid and the tube is as good as ever. (Some filament in that tube). 9DUV is still suffering from fluctuating line voltage but the power company is putting in voltage regu- laters, which will fix him out FB. 9EEP has the lightning struck guy wire fixed again and pounds out in the usual fashion. 9BAY has a 100 watt set perking now at the Armory and will soon have a 1000 watter knocking out on 40 meters, to- gether with a 50 watt c. w. and phone set on 80 meter band. 9ADS works onschedules and finds it much worth while. 9BPY handled a lot of traffic direct from FX-1 and after rebuilding the chemical rectifier, steps out fine. 9DBW is another who finds 3rd harmonic operation much better than fundamental. He mailed 40 messages to Minnesota points this month. (What's the matter with the Minnesota gang on the air? SCM). 9BIY holds first place in the state for traffic this month, but is leaving for school at Ames, Iowa. Traffic: 9BIY 163, 9DBW 70, 9EGU 47, 9BPY 28, 9ADS 20, 9BAY 16, 9EEP 14, 9DUV 12, 9CWA 10, 9DGE 10, 9CTW 8, 9DZA 6, 9KV 6, 9EFK 5, 9AIR 2, 9CUM 2, 9BNF 2. 9CCX 1. Addendum: 9DEQ has rebuilt his transmitter using new REL inductances and “Zep” antenna. 9DHP just got on the air and hasn't worked any DX yet. 9DMA worked M-9A and WNP. 9BKX is off for alterations. 9EGG reported that 9BNF has gone to Washington to take up commercial operating, and his brother will take charge during his ab- sence. 9EFD is contemplating rebuilding. 9ADF is now trying Vertical Antenna using self-rectifying set with 2 50 watters. Traffic: 9DEQ 3, 9DMA 4, 9BKX 4, 9EGG 3, 9EFD 2, 9ADF 8. SOUTH DAKOTA—SCM, F. J. Beck, 9 BDW— Stations are general rebuilding in preparation for cooler weather. 9DWN is high traffic man by virtue of 13 schedules and 8 hours per day operation. He operates on both 39 and 80 meters. 9DZI broke into Australia in addition to a fine message total. 9CJS has rebuilt his set and has 100 watts on 80 and 160 and 15 watts on 20 and 40 meters. 9DIY has an M. O. set. SDNS the Y. M. C. A. station at Sioux Falls is active 9CKF is a new station at Philip and 9CNK at Clark. 9DB has a Hertz which works FB. 9TI and 9DID are rebuilding sets. 9BBF is the Official Observer. Traffic: 9DWN 888 DZI 174, 9CJJS 44, 9DB 20, SBDW 20. NORTH DAKOTA—S8BJV has raised his wave to 42 meters and has enlarged his rectifier and expects to have better QSB. He is building a seven and one half watt fone set for local use. 9BZF will be back on the air again in a short time and expects to be able to handle some traffic for North Dakota. 9DBR is doing good work again and will be on nearly every night. 9CRB will be on 178 meters all winter. His folks have gone and he has to take care of the telephone central so not much time for set but managed to keep schedules with his folks while away on their trip. 9DKG has been heard on west coast in day time with 50 watt input. Hori- zontal antenna system, 8 feet high. 9FN is mov- ing to another part of town and will be off the air for a few days but expects to be on with a better set then. Traffic: 9DKQ 2, 9EFN 2.

Page 108

can DELTA DIVISION 3CM, C. A. Freitag, 5UK—There very much activity in this section exceedingly poor weather condi- QRN I believe, however, that we an improvement within a short within the last few days foreign coming in a little better. having a schedule with the Motor Francisco, RXY. each morning at just purchased a new motor sing two UX210 tubes with an watts he has not been able to do much ge his transmitter and receiver. He nemitter of 50 watts power. 5ML cireuit with CX-210s. gang has formed the Caddo club gressing nicely. KC &, 5UK 7. CM, J. W. Gullett, 5AKP—5QZ from a Naval Reserve Cruise to will be on the air regularly from Robins, of 5YD has been pounding al operator and has just returned h America. 5AGM will be off the ner as Boy Scout camp has closed \LZ-5ARB are on a trip to North CM has three applications for ORS andiers » much better report next month eurs in this section are rebuilding transmitters for the cold weather soon : 5API 27, 5AQU 5, 5AGM 1. SCM, L. K. Rush, 4KM—Come on, | in those reports each month. We Tenn. and especially around of the State. 4HL uses a f yr a visit to u6CBM. He has ik " has handled traffic for 9EK tive station through the summer. r's Institute and will have a 9 4CU is rebuilding and will 41V has come to life again meters 4KM is slowly but » air again. Several of the gang ver for a few days. ‘HL 11, 4KM 10. HU DSON DIVISION YORK SCM, Earle Peacox, bad for a start, eh? This Section last month You fellows that 40 meters calling twenty-five ge three of them must think you're time. DX stations are just like the world over. Allentown, Pa., or they all hand you the same line. got wise to this. Come up on 80 raise them all. Arrange a few vel a few messages around, and 1 a brand new thrill. What, say? ADQ and 2ASE want ORS appoint- »CNS, 2DD, 2AGQ, 2AAN, 2LA, APT, 2AKH, 2ANV, 2AML, 2CTH, -ADH have had their appointments ertificates reassigned. The others, of 2BQB and 2AGM, who have eir ORS suspended due to inactivity, tall explaining to do or they'll be apital ““C”’. rking on schedules with 8BLO, \KH and 1ANE. He hit his daily weeks and look what happened. but was off to rebuild. Made a and every plate glows! 2CDH BPL and kept a daily schedule with ng out. 2AKH nearly made the raffic is plentiful. 2AWQ insists on » here instead of to Mardon, so we them anyhow. 2AGQ took a from VOQ but admits dropping 1 have heard VOQ, you must wonder keds were kept with 2ALI and 2QU. y sked with 8CJJ and clicked with AML is nursing a Hertz antenna in Hil 2ANV is the live wire from eps the SCM posted on what's what. He had a sked with 2QU. 2LA is on ays the wx is fine up there. Quite e old band, he says. FB. 2CTH SIN, g2IT, g6TD and heard from 8MA and a7CW on 40 and bB2 on 26, all in daylight. Hw? 2CYM may QSY back to 200 meters. Who said it was NG? 2ADQ says “Puedo tenor ORS certifi- cate?” To which I answer, “Si Si, Senor! By the time you read this, 2CYH will be on with xtal control. FB. It’s tough 2DD can’t find more time to whack the key. There’s one station that would sure boost our traffic total sky high. “DX?” says Bill, “Hi Hi" says me. 2PV is another married ham but seems to find plenty of time to rebuild and everything. Just back from his vacation, watch Herb roll up a total. 2BOW is just back from Plattesburg and is trying hard to get started again. The SCM is afraid it’s those wild women from Tarrytown. 2CTF went to all the trouble to put a big jug on 20 meters just to work VO” on schedule but never a tumble did he get. And after building the low power set VOQ is using, too. 2CNS, on vacation, couldn't do without a port- able receiver, but oh, how his fingers itch for a key! 2AAN pulls the same line he had last month, the lightning struck his fifty blue. Hi! The SCM feels that 2CJE and 2AQH are tempting him with their tale of adventures with the YLs. 2ADD ran around the club with old 2CUZ. Wilson is going to Princeton and will have to give up his prep call 3WV, but Whittemore is going to open up again for a few hectic months of ether blasting and then—vwell, he’s going to join the Ancient Order of Benedicts, you know. 2CBG has already married but is having a hard time finding a QRA that will do for the wife and a station at the same time. And 2AJE, well, he’s still going to open up with two “P” tubes and 500 cycles on the plates. Hi! 2BQB is going to school in the first district and will have a station there. 2UF is a new one in Delkirk and a brakeman on the Central in his odd moments. 2AWF had the great misfortune te lose his father, which may account for the silence in Albany. The boys all extend their sympathy. 2ANV will open up when the auto season closes. “You can’t be on the road and on the air at the same time,” he says. 2TO is a new one in Catskill, ex 1PB, too. 2CVH is going in W. P. with two fivers. Spring Valley also has a new one, 2AUO on 40. 2TF dropped in to the Yonkers Radio Club. Lots of new hams, eh? Leave it to us to pass out the report cards. Hi! 2ANM says he just got back from vacation, which accounts for the silence up yonder. Traffic: 2APT 250, 2ADH 160, 2CDH 91, 2AKH 78 2AWQ 24, 2AGQ 19, 2AAZ 13, 2AML 9, 2ANV 8, 2LA 4, 2CTH 4, 2CYM 2, 2ADQ 2 NEW YORK CITY & LONG ISLAND—SCM, F. H. Mardon, 2CWR, Brooklyn—2PF has a new antenna up, 85 feet high. FB. He is pretty busy with the Army net control work. The following stations have been appointed. Bronx 2CYX, Alternate 2APV, Brooklyn and Staten Island 2PF, Alt., 2CLA. Man- hattan, 2EV, Alt. 2 ABT. Long Island 2AKV, Alt. 2KG. 2CRB has a total of 27 foreign countries. He needs Asia for a WAC ticket. 2BRB has been away most of the summer but is back now and intends to get going. 2BBW blew 2 kenetrons and installed four in their place. 2BO now uses tuned plate and grid and reports the set perking FB. 2AQW is stil! kicking out FB as usual. 2APD just got back from vacation and has a new receiver. 2WC is away on a much-needed vacation. Director Dunn, 2CLA, is also on vacation. Both will be back soon and will start their many activities. Bronx—2SF is still much alive but nil on traffic just now due to other activities. 2CYX reports DX FB. He has handled traffic with WNP and kept schedules with NTT in Greece, Turkey and Roumania. also nOWC. Take a look at his traffic total for this month. 2BBX now uses break-in system. He recently worked CVNXL. 2AYD now uses the call 2ABG in addition to his other one. 2APV is still batting them out, he is handling Porto Rican traffic regularly, re- cently worked Tasmania and keeps skeds with NTT and a7DX. 2AHG is on his way to Calif. to KDNR. 2ALP is working his station during his absence. He has worked quite a few foreigners but the poor tube gave up the ghost. Hi. Manhattan—2NZ is building a 204A set so hasn't been on the air much this month. Some one pulled his antenna out of the pulley and he just got it back. Nice people where he lives. 2LM is working a few foreigners but says traffic is not so good. 2LD has the hard luck to have to work at night, so he doesn’t do the DX some of the fellows do. 2EV recently took a 172 msg. from z1AO solid. It contained 1ARU news. He says it came in fine. 2BNL just came back in the flivver from a trip to the Midwest. He saw all the gang out there. He is now using 400 V. B. battery and a 8 v. A battery on a UX210. 2BCB is doing the same thing, only using 500 v. 2APJ is using an H tube QST FOR OCTOBER, 1926

Page 109

wT eee! hC* and a new antenna 135 feet above ground. 2AMJ has been very busy lately. He says he had a great time with 41Z on his recent visit to N. Y. 2ALS is using 2, 210s and a crystal on 80 and a 50 on 40. 2ALL uses tuned plate and grid. Queens—2AIZ is rebuilding, putting in a 50. He will be on the air in Sept. 2AYJ has started at last but says he wishes he had started long ago. 2AWX back on the air after a hurried trip to Washington. 2AVB is busy taking orders over the air from DX hams for radio goods in N. Y. stores. 2AUE is doing good work. 2AJE finally got across the pond, worked fsYOR. 2AEV is very busy with the YLS. Hi! 2ABF is getting out FB. Richmond—2CEP is the star of S. I. this month. 2AKK is back from a flivver trip through Texas and Colorado. He will be on the air steady now. 2AKR is rebuilding. He will be on in Sept. 2ATQ has in- creased his power and is ready for traffic. 2ABO, 2ABH, 2ABD are new stations in S. I. 2TS and 2SL are on 40 meters. 2AFV has a fifty going on 40, 80 and 200 m. The SCM has had many requests regarding new ORS certificates and applications for same. Be patient and they will all come in due time, and if you don’t hear from me immediately, don’t think I have for- gotten. I have so many other things to straighten out that it is impossible to get down to the ORS at once. Your old certificates are still in force until I start to issue new ones, which will not be for about a month and a half yet. Traffic: Richmond—2CEP 207, 2AFV 26, 2AKK 10, 2ATQ 10. Queens—2AVB 102, 2AUE 76, 2AEV 41, 2ABF 25, 2AYJ 20, 2AWX 18, 2AJE 17. Manhattan —2APJ 54, 2EV 38, 2BCB 25, 2ALS 15, 2AMJ 11, 2NZ 10, 2ALL 9, 2LD 6, 2LM 2. Bronx—2CYX 211, 2BRX 34, 2APV 33, 2ALP 26, 2AHG 20. Brooklyn— 2CRB 35, 2PF 19, 2BO 18, 2AQW 17, 2APD 1. NORTHERN NEW JERSEY—SCM, A. G. Wester, 2WR—2AT promises to break forth with greater power. 2 BW is QRV experiments and vacations 2CP expects to be an Army Station shortly. 2CW transmits with an indoor antenna. 2AFQ is having trouble having the station license renewed. 2DX is back from Bermuda and has worked I-1AY. 2EY is still rebuilding for short waves. 2FC is keeping the shore traffic route working. 2GV is busy laying plans for an amateur banquet to be held in Newark Oct. 16. 2AXP isa new station opening in Hasbrouck Heights. 21S has reopened and reports very little traffic. 2KA is rebuliding the receiver for better DX. 2QI is a live wire station in Union City and is in line for an ORS. 2QS is trying to get the Plainfield amateurs together again. 2ADU has just completed a new 55’ mast. 2ADV had the misfortune of blowing two fifty wat- ters. 2AHK is leaving for college and the station is now dismantled. 2ALM had to build a chemical rectifier after his Kenotrons went up in smoke. 2ALW also had a misfortune which was blowing his motor generator. 2AMB has all prospects of having the best amateur semi-commercial station in the East. 2 ANB would like to arrange schedules with the gang. 2AUJ has a baby girl which he hopes to train for a 2nd op. 2AZU is in Washington visiting the hams. 2BK of old spark fame is threatening to return with a tube transmitter. 2ARC is vacationing in England but the station is in steady operation with a second op. 2AUH will have a fifty and two-fifty watt xmitters for all amateur waves. 2AUI is on a cruise with the Naval Reserve. 2BGI is working up in the 200 meter band. 2CDR is operating on the 40 and 200 meter bands. 2CGK reports very good success on 20 meters. 2CQZ is attending Columbia University in the radio course under Prof. Morecroft. 2CYV is rebuilding for all the amateur bands. 2WR will be silent and he enters the fifth amateur stage Sept. 25. Traffic: 2AT 238, 2GV 13, 2AHK 138, 2ALM 13, 2CP 12, 2AUI 12, 2QI 11, 2DX 11, 2CYV 6, 21S 5, 2QS 4, 2ADU 4, 2CQZ 4, 2KA 2, 2CW 1, 2ADV 1, 2ARC 1. MIDWEST DIVISION OWA—SCM, L.R. Huber, 9DOA—The SCM put in a month’s work as a CMTC student and re- turned to find that 9BKV and 9CZC, as Route Managers had been hitting the ball in fine shape. FB! lIowa will be all there this winter when it comes to traffic work. More applications for ORS appointments are solicited. You may not make the grade at first—but you can find your weak spots and shoot again three months later. Several applications have been re- ceived to date. QST FOR OCTOBER, 1926 9BFF takes the cake this time with a big stack of messages leaning toward the BPL. Yes, SCHEDULES DID IT. 9CGY and 9EFS continue their good work. 9CZC (AST. R. M.) is eaves- dropping on 80 with an ear for reliable Relay Stations for the routes this winter. 9DSL pounds off a few in spite of being in the hospital. 9AXD came to life and hooked some, too. General development all over the state indicates that all hands will be on deck this winter for traffic. 9DOA will attend the S. U. I. at Iowa City this winter. Look for a change in address in next QST. Until then, send all mail to Tipton and it will be for- warded. And don't be afraid to write letters. Traffic: 9BPF 74, 9CGY 380, 9EFS 22, 9AXD 16, 9DSL 12, 9CS 6, 9BOS 6, 9CZC 5, 9AED 3. KANSAS—SCM, F. S. McKeever, 9DNG—Kansas had an unusually poor month for traffic due to the reporting of so few stations. The Topeka gang are going strong with four new ORS: 9CET, 9AEK, 9CV and 9BHR. 9CET is a new OBS also, with a new 204A and worked A, Z, FM, CH, G, GH and BZ. 9CV and 9AEK have 50’s and work A, CH and Z often. S9DPU, 9CVL, 9CKU are on some and re- port a little traffic. 9DNG worked all continents and a new country—Morocco. He and 9AEK report QSO with WNP and KGBB. 9LN worked A and Z as wellas WNP. He is on from 4 to 6 hours a day and is coming strong. 9BGX and 9KM promises to be on with a punch in Sept. Traffic: 9CET 26, 9CVL 22, 9DNG 17, 9LN 16, 9AEK 12, 9CV 8, 9CKU 6, 9DPU 6, 9BHR 1. NEBRASKA—SCM, C. B. Diehl, 9BYG—General affairs are slowly picking up on account of cooler weather coming on. 9DXY is rebuilding and will be on about Sept. 15 for the rest of the winter. ®CJT has been on vacation a good deal this summer so no antics. 9AKS is in a summer army training camp. 9%AWS is QRW army work. 9BN is still at it. 9EHW is arranging schedules for winter traffic. 9BFG is on vacation in Northern Minnesota. 9BOQ says QRM is bad. 9EAK is still rebuilding and getting ready for a spasm this winter. 9BXT says traffic is light this summer. 9CGQ is stil] at KMMJ 9DUO is getting ready to do lots of business this winter. 9DUH is pounding away as per usual. 9BBS is QRW with his railroad and doesn’t have time to be on very much. 9AGD is working hard to get on the air soon. SEEW is back at it again. 9EBL is doing the same good work. 9BYG is standing by. Recent appointments: 9EW, is Chief Official Ob- server and has appointed 9EEW as first assistant. 9BFG is Chief Route Manager for this section. It is indeed a great pleasure to have him accept as he is the best traffic man in this Section and we are expecting great results from him. 9BQR has been appointed ORS and asks that we slip him business. 9EBL has been appointed Asst to Route Manager and acts until 9BFG gets back. Chatter: Quinby is QRW with his work and says he will be still more so when he breaks out on 80 meters for winter traffic. Neilson is experimenting. Badgerow says he hasn't feet and hands enough to keep up with the game. Anderson is handling traf- fie as per usual. S9EHW came back to life and is QRYV for traffic from all four sides. Burwell is tinker- ing with a crystal. Magnuson is looking for schedules for this winter's work. 9EAK is rebuilding. 9DUH is sure showing himself this summer and is doing some very fine work. 9BBS hasn’t much time for radio now as his work keeps him away most of the time. 9AGD paid us a visit Aug. 23 and looked for a few pointers for his new transmitter. 9EEW sure does pound them out and is very chesty over a new wave- meter. 9EBL claims he has the worst location in the state but his reports deny that. 9YAB is at it again and inquires about an ORS. 9ACF and 9FA are mainstays there now and we expect great re- sults this winter. 9BQR just got his set to “SNORT” on 40. Traffic: 9EEW 49. 9EBL 39, 9DUH 16, 9BNU 14, 9DXY 12, 9BBS 11, 9CTJ 8, 9BXT 2,. MISSOURI—SCM, L. B. Laizure, 9RR—A general get-together and hamfest for hams, as far away as they can find means to come from (hi), was staged Sept. 4-5-6 at St Louis conducted by the OBP. There was a generous attendance of hams from all over the state. Details next month after we re- cover. 9ZK-AAU made the BPL this month with a grand revival of msg. activity. 9BHI and SBEQ

Page 110

Ye24r4 27~ 1@H ORA due Ms each AWE 20 « western tour so traffic has been ed along a few mesgs and reports super-sink—not of the Taurenweref ND, too hot. ~inted as State RM. S9CKS came ard, built a big antenna, got set to rmonie and has been worked several ral hundred words traffic handled. Ottawa, also msgs, for members of me folks, VYG reporting him R7 to the pudding is that CKS has to and his side kick 9CYK is QRD DKG is QRT, has to stay home as peration 9ARA made BPL, also districts, NZ, Alaska and others nd wants schedules on 20. 9CDF rick and QRT temporarily. 9DVF ntenna, no counterpoise, moved set ew 201As with 90 on the filament, vered 3 msgs and is still a ham. eopening Sept. Ist. 9CWZ is away where west. 9DAE is returning to burg, address 205 E. Culton. He is tation there and wants to hear from to route problems 9BSV put in new He says it is FB and wants and west. 9BUL is wrangling an EKP is reopening his station with UE handled traffic and kept schedules am daily. 9AOB is shut down on snd QRN. 9CRM reports same at hands QRT for summer. 9BOB wing 500 cycle plate supply as dead. 9BIE reports ND locally. ‘0 handling traffic. 9BND’s last orte arrived via the Director. 9ADR messages. SELT is going again. \ are too QRW to operate lately. 104, 9ARA 103, 9BND 75, 9CKS 438. R 10. 9DMJ 10, 9ACX 9, S9BUE 8, NEW ENGLAND DIVISION AND—SCM, B. Fancher, 1BVB 1AID is on again after an illness for schedules. LAWE, 1BIE 1AEI sl! active and live wire stations get- AWE worked Jugo Slavia. FB, OM. ay that vacations interfered this AAP has been appointed an Official has logged a bunch off wave. Look gs about the same at IBVB. 1IBLW ng a low power set and is getting an ex-commercial op from the » don’t try to burn him up. It 2D is a new OBS. The SCM visited » neat station. He also found that of a new OW. Hi! IBVB 14, 1AAP 12, 1AEI 7, IBIE 2. MASS.—SCM, R. S. Briggs, 1BVL.— BVK, 1ABA and 1QZ join the Brass FB and many congratulations. with a 50 watter and expects to 200 meters. 1CJR has been away e traffic. IRR built a crystal con- er but it did not oscillate within the AXA visited 2CVJ. 1ABA is one of nders but he dropped a screwdriver on | to use one tube for both sending 10U bought a lot of junked Army snd used the good parts. 1AIR re- bad at Nantucket. IBVL had his fine until the cyrstal cracked. 1JL USNRF cruise. 1BZQ is trying eters at his new QRA. INK and ng Revere on the map. IRF is BKV handled a bunch of traffic on E and 1BMS do some snappy traffic ters early every evening. 1ACI re- | then was sorry he did. INV is on IBAT is still trying to get some Keep it up, OM. Hi! 1IKY is back 1CPD. 1LM was bothered by bad CIT is going to operate on 80 meters. fine traffic work at his summer all 1QZ. 1AVF had to drop schedules eather 1AWB visited the gang in Pawtucket 1ALP is on again after QRM from Fords and YLs. 1ADM handled a mes- sage with WNP that was QSRd from F-8TBY to Chicago in 1 1-2 hours. 1GA is getting out fine with a master oscillator set. Traffic: 1BMS 304, 1UE 270. IBKV 114, 1ABA 110, 1QZ 105, 1BZQ 55, 1AVF 33, INK 28, 1AGD 21, 1GA 20, 1AWB 20, 1ACI 19, 1BVL 15, 1ADM 11, INV 8 1CJR 8, 10U 7, 1ALP 6, 1JL 6, 1AIR 5, 1KY 4, 1LM 4, 1AXA 3, 1AGS 2. MAINE—SCM, F. Best, 1BIG—IAUF handled an impressive total, closely followed by 1ATV and 1BFZ 1BCY is working on both 40 and 80 meter bands with a wonderful DC note and a nice punch. This sta- tion has now been in operation for three summers 1UU is on almost every evening and doesn’t intend that anyone else shall get the Queen City Radio Club cup if he can help it. IAYJ has been busy but in spite of this, has managed to tie up with NGT, Naval Radio Station, Seattle, Washington on 80 meters. 1BNL is still handling a little traffic in spite of the fact that he only gets home over the week-end. 1ADI has been on intermittently and promises to handle some regular schedules this fall. 1QY is going great guns with a new Hertzian antenna. 1COM and IBEE have started up and give great promise of developing into a good pair of traffic handlers. 1BHR has a fifty and is punching great holes in the ether. 1BIG has a new transmitter under way for the 80 meter band. 1BDB reported with a good total. 1AIT reported through 1BIG via radio. Traffic: 1BIG 531, [AUF 157, 1ATV 132, 1BFZ 117, 1AYB 59, I1BDB 27, 1UU 18, 1AYJ 14, 1BCY 13, IBNL 9, ADI 7, 1QY¥ 7, 1COM 4, 1AIT 40. VERMONT—SCM, C. T. Kerr, 1AJG—I1BBJ hops off with the traffic honors. FB, OM! I1BEB is greas- ing up again and will soon hit the them off. IBD, a new ORS, is shooting in the traffic too, Last month he handled 43 messages with his “fiver,” leading the state! 1CQM is on a trip south to see the sights. 1AJG is on his vacation. 1AC is re- building. Where is 1IBDX? 1BIQ is now QSO Canada. Hi! Now, fellows, with the advent of cooler weather, the SCM expects all to get in line again and slam out those msgs as well as report activities to him. Traffic: 1BBJ 23, IBD 9. CONNETICUT, SCM, H. E. Nichols, 1BM—The SCM is looking for a wonderful Fall in the radio work of this Section and has received quite a few applications for ORS appointments which indicates our stations are doing good missionary work. Fel- lows, do all you can to encourage that new amateur in getting started for we must keep the rank filled up. IBEZ, a new ORS, and 1AOX head the list for the most traffic handled and are to be congratulated for their zeal during the warm weather. 1FD is sick in bed but sent in his report just the same. We certainly appreciate your loyalty, OM, and hope you will recover very soon. IMY has a portable 50 watter at his summer home and is QSO France. 1VY is working out a crystal control transmitter and hopes to have it working on 40 meters soon. 1BHM, Route Manager of New Haven County, has lined up a number of fine prospects for ORS and ex- pects to have his territory thoroughly covered and working by Fall. 1BM has at last succeeded in getting on the air and hopes to be QSO with all Conn. ORS. Keep watch on 40 meters. Traffic: 1BEZ 36, 1AOX 30, 1ADW 24, 1AOS 16, IMY 14, 1FY 14, 1ZI 13, 1HJ 9, 1BGC 6, 1BQH 5, 1BM 4, 1BHM 4, 11V 2, 1BLF 1. NEW HAMPSHIRE—SCM, V. W. Hodge, 1ATJ— Traffic has increased somewhat this month in spite of bad QRN and QRM from vacations. Most of the gang are on 40 meters and report good DX. A bunch of ORS are to be cancelled for failure to re- port for two consecutive months. 1AER reports bum receiving conditions. 1AOH has been doing good work and is a prospect for an ORS. 1BFT was QSO WNP and took 7 messages. He also worked f{8-RBT twice. FB, OM. 10C will be on 80 after Oct. 1 and wants schedules. 1AVL also worked WNP and is having great luck on 38 meters. He expects to return to N. H. U. this fall, a new 50 watter is perking at 1LAOQ Traffic: 1AVL 30, 1AOH 30, 1AER 28, 1AO0Q 20, I1BFT 10, 1CKK 10, 1ATJ 65. WESTERN MASSACHUSETTS—SCM, A. H. Carr. 1DB—Most of the gang reported. It was surprising that a few of the old timers forgot. We had quite a few zeros due to hot weather and vacations. Dr. Tesmer of Shrewsbury, a staunch friend of the Worcester County hams, has joined the ranks of QST FOR OCTOBER, 1926

Page 111

ORS. We all wish him good luck. His call is 1UM. Our old friend, 1AAC is on the air with a bootleg 201A and Ford coil until fall when I suppose he will QSO Mars with a new set. IAAL is setting up a Master Oscillator and Power Amplifier. AJM new ORS. 1AKZ is still handling messages with handled some traffic for WNP which was FB for a the schooner Sachem, III. Good work, OM! 1AMZ is on schedule with 2ARM daily. 1AOF has been QSO Tasmania. He has 500 watts on CW and fone and somebody surely will hear him now. Hi. 1APL is using 250 volts B battery and will soon have 500. Our old friend, 1AQM has come back strong, broken leg and all. He reached a total of 31 which was pretty good for a cripple. Perhaps it would be well if some of the rest of us got “broke” somewhere? OM Cushing, 1AAW, says he is still fishing, swim- ming and studying. That must be hard work com- pared to being DM. 1BSJ is rebuilding and says he will be with us in the late fall. We sincerely hope so. LAZW says that he, 1AMZ and 1AMS had a great time on their visit to Hartford. I believe they visited WTIC and didn’t suggest any improve- ments to the management. Can it be that some of us amateurs are slipping? Hi. 1AJK sticks to 80 meters and says no YLs at present. No kiddin? SRY and 2ATK visited 1AMS during the past month. We would like to welcome more visitors to our section to show them what a live bunch we are and how it can be done. Your SCM quite un- intentionally forgot to thank you all for his new job in his last report. This may be the only way that some of you will hear of it and the SCM wants to take this opportunity to thank you for the sup- port and ask your co-operation in putting the Section at the very top. Visitors are welcome every day at 1DB. I hope to get all the new certificates out soon. 73. Traffic: 1AJM 49, 1AMZ 46, 1AQM 31, 1AKZ 21, 1APL 12, IBIV 8 IAMS 6, 1AJK 4, 1AAC 2, 1AAL 2, IBVR 2, 1AOF 2, 1PY 1 NORTHWESTERN DIVISION REGON—SCM, A. C. Dixon, Jr., 71T—Portland O stations led the rest of the state as usual. There are now five Portland stations which are on the air consistently, working DX and handling traffic. They are 7AEK, 7IT, 7VH, TAV and 7WU. 7AEK has been keeping schedules with Alaskan 7KK for the last three or four months and has handled around sixty messages per month. 7VH is chiefly an experimental and DX station. He has kept schedules with Borneo and Malay. 7IT has worked the eastern hemisphere a number of times and cleared 1800 words of traffic through z2XA. 7TAV makes up by consistency with what he lacks in power. His best DX is Japan. 7TWU has been reported in France and Italy. 7AKK is back from his honeymoon and promises to send in a cieditable report next month. He is one of the old timers. He did some good work this month, too. 7SY got on for five days and handled several messages. 7AAC is a newcomer in line for an ORS ticket. Portland and the rest of Oregon for that matter is poorly situated for transmission east. The sixes are much louder in the east than any of us. The gang back there must not think that we do not know how to operate because we make up for it West. 7VH, 7WU and 7IT are reported in Maiay, Borneo, Japan, PI and China as being louder than any of the sixes in many cases. There is not a 250 watter operating in Oregon that I know of, either. We do it on fifty watters. Ry 7AEK 64, 7VH 29, TIT 26, 7TAV 12, TWU . TAKK 8, 7SY 4. eae SCM, K. S. Norquest, ex-70B—7FT is still on the East coast pounding commercial brass but will be back to go to school this winter. TYA is getting lined up with higher power but wil] not have a staff of operators till school starts. 7OB and 7TRQ are no more, as their calls have expired and they are attending college. They still retain their operator's tickets and pound the brass whenever the occasion affords. 7VU will be active in Boise this winter with his two 250 watters. 7QC is on again and reports good work on the early morning trick. TJF is the star relay station this month before two line surges cleaned out his supply of tubes. WASHINGTON—SCM, Otto Johnson, 7FD—Some- what better results were obtained from the ORS this month but many of the reports came thru late. Don’t forget, two “misses” and you lose your ORS. Alli stations report good DX throughout the summer. Some fellows are too QRW with the YLs to take ad- QST FOR OCTOBER, 1926 vantage of it, tho. There’s only one cure, fellows! 7UO, a non-ORS, takes traffic honors. Yes, he keeps schedules! 7GE worked O-4AE. 7RL worked O-A3Z and Borneo SK2. FB. T7VL says that Spokane hams are installing a 250 at the Inter-State fair. T7AIM got Q@sOo VOQ. TUQ and 7TKU are back. T7FD is in- stalling a mercury arc rectifier, as is 7AIM. 7NH re- ports better DX with DC. 7AG shot his fifty, shook the filament together again and worked A, Z, AU, Hu’s and much local DX. Tube must be in _ its second childhood. 7CY did not get much traffic. 7GB is QRW YLs. (Or is ita YL??7) TEK and 7TX are still vacationing. 7AFO has schedules with au7BW, ex7AFN. 7BJ says QRW very, no brass pounding. Ex 7OT writes that he will sign 9HASH or something from Chicago. 7PZ is having tube trouble. 7QP, of Key Klicks, has moved back to Wallace, Idaho. Traffic: TUO 84, TRL 44, 7AG 22, TVL 15, 7KU 8, 7TAIM 6, 7FD 4, 7GB 3, 7CY 2 MONTANA—SCM, A. R. Willson, TNT—7PU and 7DD did some excellent work this month. 7PU joins the BPL. He has a new 50 watter working the whole world. Five rush messages from WNP to Chicago. 7DD is doing excellent work in spite of his poor location. He has worked A, Z and BZ, on 40 meters, using M. O. circuit. 7AAT is one of the new Red Lodge stations. TAAE is operating a power station at Mystic Lake but will be back with us strong soon. TNT was away from the set most of the month on business. Traffic: 7PU 314, 7DD 51, 7AAT 17. TNH 8, PACIFIC DIVISION ECTION 4, NO. CALIF.—SCM, F. 6NX—The new ORS certificates will soon be mailed to all active reporting stations. Several stations are going to lose their ORS if they do not re- port this month. 6BMW was high traffic this month, nosing out 6AMM by ten messages. 6BWM was QSO WNP on August 6. 6BVY sent out 50 O-O cards in twenty days besides keeping schedule with pilAU. 6ZAT had his portable working at Boy Scout Camp, while 6CKV did some fine work with his portable call, 6COI at Capitola. 6CJD built a portable this month and will take it on his vacation. 6BLT worked NZ with his portable. 6AMM kept schedules with KFUH and 6XK as well as handling traffic with J1TS. 6CDW is a new station and will soon be ORS accord- ing to the good work being done. 6CIS is using a 301A of 1922 vintage for transmitter. 6CEI had some hard luck trying to get proper juice. 6CLP with 80 watts input, using 5th harmonic, works HU with ease. 6DEK handled his usual amount of traffic and is on consistently. 6AFI is a new station in San Mateo whose QRH is 80 meters, 7.5 watter. Glad to QSO. 6HC, 6CKV and 6APS left on a trip through Oregon and Washington on Aug. 28 to help advertise the Pacific Division Convention held in San Jose, Oct. 15-16-17. FB! 6NX is still OR D’Combat with a power leak, but Convention business has made it al- most inipossible to pound the key. J. Quement, Traffic: 6AMM 46, 6BMW 36, 6BVY 26, 6ZAT 22, 6CDW 21, 6DEK 19, 6CLP 15, 6BLT 9, 6CKV 9, 6NX 7, 6CIS 2, 6CEI 1, 6CJD 1. Sect. 6, No. Calif.—SCM, St. Clair Adams, 6BAF— 6BAF is now assistant op at a new broadcasting sta- tion just opened at Eureka. As so few reports reached the SCM this month, a move to combine Section 5 and Section 6 is being considered. Please let’s have all the reports promptly next month, OMs. SOUTHERN SECTION—SCM, L. E. Smith, 6BUR Hot weather here has had no effect upon amateur activity. Traffic is as heavy as winter time and work- ing the other side of the globe, So. Africa, is a com- mon thing. The first amateur picnic was held during the first of the month, and on Sept. 1 another ARRL banquet was held in Los Angeles. Both affairs were attended by nearly seventy hams. The SCM is ex- tremely proud of the traffic record the Section is mak- ing. this being due, of course, to the real live wire ORS we have. Activity around San Diego is showing great in- crease, a bunch of the San Diego hams planning to go to the Pacific Division Convention in airplanes. Con- grats! 6AJM had the great misfortune of losing his father. He is now back in Lemon Grove. 6BAS has just finished his crystal contro] outfit. The grid and plate in 6SB’s 50 united so now he uses a 199. As usual, an Official Observer. now uses an A tube. Hi. 6BQ leads his district with traffic. He is now 6MB blew his 500 watt tube so Any difference, OM? A xIll

Page 112

6AOY is very rea gives 6CGC pure DC. act » KW outfit. D had the honor of having Miss 7SI per She has created quite a stir er here. n | reles (7) and the entire district has ior how her a good time. 60OR, a new OR rking VYG while at Prince Edw. , that finances and a YL kept him ff how do you mean that, OM? 6AKW ret} s going to fire up his fifty soon. A s one of our new ORS and is sure H is experimenting with antennas. 6BX BPL by a big margin this month. Kee M. GAHP was home but one week but r 6BHI now has a 199 running on 5 a listen. 6DAJ reports an increase ps 6CDY busy 7 days a week, so he his key often. 6DS is handling air 1 y schedule. Fine work. Schedules na r 6NP to make a traffic total. 6DDC ! Borneo and PI. 6BJX continues but missed the lead by 6 “ raffic total n O with So. Africa is very easy now. FB on Aluminum cone filled with water . tenna and works So. Africa. How leaving for Stanford. 6BXC wants works schedules with Hu every night. He ntire Section in traffic. Very FB! 6R\ raining a new ham. We need him. 6RTM 1 6CDK all report QRM from vacations. Cc? are all torn up experimenting. 6CQA e scarce but sure originated his share. with 6BUR’s old sync. 6CLK works 6BBQ is now keeping schedules 5 looking for schedules. 61H is a ne in working S. Africa. 6CMQ has 4 utter Ay a ff I this summer, speaking of radio. H A t. No. 3 picked up by leaps and to the Route Manager, 6BAV. He me more of the old timers will soon 6ASV is working As and Zs. 6ZBJ arbara handled traffic for the yacht the race.. 6ALR keeps up bis good wor atter got 6BVM into S. A. He worked O-A moving to San Diego in a few weeks. 6! 6ZBJ. He has just moved to his best to work J-ITS. He wants V interested but can’t seem to do it. UX210, is doing FB. 6CIW, a new nights learning the dots and dashes rk Hu 6BUC with ease. 6CKU can’t 6CUP is trying to get his heap to He has been up on 80 meters fone RZ has been doing pretty good work ¥ Lamb, 6ANO, is the new Route M mmer will soon be over and with it hope for some more big traffic totals year. 6CUW spent his vacation in visited many hams. 6BWH and e work with 50s. 6DCQ continues stations on a 7.5 watter. He promises QST soon. 6BWS is having lots of irill wlass panels. He's only a duzen ll make a record, OM. 6ASA is with a Ser doing great work. 6ANO very busy with business. He says king for a real ham year this winter. » installing a UX210. 6BIX 828, 6RBXD 176, 6BQ 175, ; 8. 4DS 80, 6NP 78, 6CQA 73, ‘7, 6CLK 44, 6CAE 42, 6AHP 41, M 34. 6BAV 82, 6CUW 382, 6BVO 28, SBVM 25, 6SB 25, 6ZBJ 23, 6DCQ W 20, 6MB 18, 6BH 18, 6ALR 18, 6RHI 11, 6AOY 9, 6CMQ 8, 6DAJ 4, 6ASV 4, 6CDY 2, 6NW 2. M. C. B. Newcombe, 6U0—Nevada t three hams at the San Jose Cun- nt the Section. Nevada's SCM is the first opportunity to see the M K A. Cantin, 6TQ—Summer - to affect the activities and traffic totals th and local stations made an effort M Summer does not affect the 40 meter \ XW leads in traffic work and made the Pounders’ League. Schedules did the s established a weekly schedule with f the six operators that stand watch arrange their schedules and this method has greatly improved traffic work. 6AJL established contact with pi-WUCB, John Hay Radio Camp, near Manila. Also stretched his East traffic work by QSOing u-1QZ, Bakers’ Isle off New England Coast. 6BDL changed his plate supply from raw AC to DC generator and now works the East coast with ease. Traffic is also handled with the Philippines. 6AFF was on the air again for a month with his new 250 watter. Regret to say that 6AFF plans to sell out and try to keep away from radio. “Is easier said than done, OM.” 6NL has a schedule with u-6NP and 6BVG-ex-KFHW. His 50 watter does the work of a 250 watt bottle. 6DCU using 7% watts MG plate supply keeps in contact with 6RW and 6APS. Traffic was handled with u-lAWQ and 2AKV. An 80 word message was handled from pi-IBD. New Zealand and Australia also accept traffic from 6DUC. 6TQ continues to keep in contact and arrange schedules with the sixth dis- trict. A schedule was kept with u-6JP but the last time both were QSO, 6JP had to run for water to extinguish a fire in his plate transformer. That was the last heard from 6JP. 6CFN dismantled his 50 and 250 watter as he is re- turning to the mainland. Using a 5 watter until he sails. 6AJE turned in his ORS appointment. Pressure of business keeps him away from the key. 6BUS re- ports reception very poor at his location on the other Island. Traffic handled with 9BRC, cSCR and c9CA. 6ASR builds BCL receivers and ham transmitters. His report indicates that he is kept busy. 6CST was QSO with S. Africa O-A6A using a five watter. Power was estimated as an input of 12 watts. Contact was established with pi-IDL. Station is now under re- construction. An tube is being installed. 6KQ using 50 watts AC has joined the ranks of Hu-hams. The relief operator at 6CLJ has been kept QRW. 6CLJ is due back from the Orient this month. Traffic: 6AXW 173, 6BUC 122, 6AJL 63, 6BDL 58. 6AFF 39, 6NL 27, 6DCU 25, 6TQ 22, 6CFN 17, 6AJE 16, 6BUS 10, 6ASR 7, 6CST 4, 6CLJ 2, 6KQ 2. ROANOKE DIVISION Hoffman, 8BSU— TEST VIRGINIA—SCM, C. S WV QRN and vacations kepf the general traffic totals down again this month. Two old timers showed activity—8SP and 8WZ. DX records are lower than usual SAMD worked schedules with WVZ,° and worked A, Hu, Z, M and BZ. 8BBM experimented with vertical brass-pipe antenna. 8BJG was heard in Australia. SWZ is on 78 meters and worked 7ZN with 5 watts. 8SP’s QRH is now 40. SAWV using a 201 tube, worked 7LY. 8CDV worked f8YOR and f8GPL. 8CEK handled a PRR message for Wheeling 8BSU is busy getting ready to issue new ORS cer- tificates. S8BUB and 8ADI1 of Wheeling; 8BTB of Hinton have applied for ORS. 8AUL worked c8AF and CZ-FR 5. Traffic: 8AMD 65, 8CEK 32, 8BSU 20, &8SP 19, SCDV 16, 8BBM 6, 8BJG 6, SWZ 6, 8AUL 60. VIRGINIA—SCM, J. F Wohlford, 38CA—3TI advises that he is moving into North Carolina and his call will be 4AB. 3MK has had trouble with his receiver. SAJT is the only station on and did very little. S3BMN has been doing some work with 70 watts input. He works A and Z. He says he ex- pects to rush right on the air in great shape as soon as the weather settles. 38AOT purchased 3AUU's transmitter and expects to be on shortly. %3BZ says nothing out of the ordinary to report. 3CKL has returned from training camp SAAI says it’s too hot for work right now 8BGS other duties interfere with his radio work. Traffic: 3TI 3, 3BGS 3 NORTH CAROLINA—SOM, R. S. Morris. 4JR— 4RY is helping put Montreal on the map. 4BT shot his fifty but finds that a UX210 is just as good. 4NJ has QRM from golf. 4MI is on most consistently. 4TS is rebuilding and will have some rig-1000 volts says storage B, MO-PA set, remote control etc. 4JS handled two messages from VOQ 4BX is working some DX now. 4PR finds little traffic. 4NH has two UX210s crystal-controlled on 387.5 meters 4IR has completely rebuilt. 4RI is a new station at Gastonia. 4WE is off the air until school opens Sept. 15th. Traffic: 4MI 52, 4RY 52, 4JR 4, 4BX 2. iNH 19, 4JS 8, 4NJ 5, ROCKY MOUNTAIN DIVISION LORADO—SCM, C. R. Stedman, 9CAA—Denver: 9CAW leads the Colorado bunch and at the same time wins the first subscription to QST given by Congratulations,OM. 9DKM runs a pretty close QST FOR OCTOBER, 1926 8AX.

Page 113

' kes eo avr” ” =e second to 9CAW. He has made application for ORS. 9CJY put out some good work in between times. He says ND on NZ as yet, tho. Hi. He has a rather important schedule to put into effect soon. 9CJP has just returned from California where he spent two months without seeing a single ham! He says he will have more to report next month. 9DWZ is a new- comer in the reports but promises to be a good station. His QRH is 41 meters. 9DLA is another new station in Denver and hopes to be going soon. 9CNL ditto but he is going fine with a 7.5 watter. 9CUZ will open up as soon as school starts. 9BQO, still another new one, sends his first report in. 9EEA is going fine. 9DED has put in remote control and a Hertz antenna and reports fine results. 9CAA is also using remote control most of the time but is not on the air as much as formerly, as he is working nights now. 900 has another new 50 and says he gets a better QSB now. 9BJN is rebuilding for a mercury arc rectifier and hopes to have it going full blast PDQ. 9CHV, an- other new station, is a Western Union op and handles lots of traffic here but reports things slow on the air. 9DQG and 8BJN are both out after the army traffic. 9DQG does most of his work in daylight. 9CDE is working for an Army-Amateur appoint- ment. Good luck to you, OM. He has a schedule with 9EAE every Sunday. 9CFY is back on with AC on the plate. Traffic: 9CAW 396, 9DKM 281, 9CJY 96, 9CAA 93, 9DQG 52, 900 25, 9BQO 11, 9BJN 10, 9DED 10, 9DWZ 5, 9EEA 4, 9CNL 2. UTAH-WYOMING—SCM, Art Johnson, 6ZT—Only four reports were received from our stations this month. Practically everyone, including the acting SCM, was away on vacations, so there was very little activity. 6 RV with only 13 messages handled more than any other station in the Section. 6BUV reports that he is now obtaining excellent results with a Hertz antenna on 77 meters. 6AIK in Ogden has submitted applica- tion for an ORS certificate. Traffic: 6RV 13, 6BUV 3. SOUTHEASTERN DIVISION as ee nen A. D. Trum, 5AJP—Mobile has a most active ham in the person of Harrison of 5DL. He helped in the installation of the new tube set at WNN as well as the erection of their powerful antenna and counterpoise. 5AX is perking to beat the band, despite an accident recently which nearly cost him his life. One often hears 5MI work- ing. 5AKK is a new ham in Birmingham. 5WI has been working most everywhere with his old trusty fifty and his 100 foot mast raising its towering head to spurt forth the fiery waves coming from the shack. 5DI has played in hard luck so often that he feels like it’s natural. Besides blowing an H tube last month, shooting his transformer and then blowing another H tube this month, everything is working at normal. 5AV is building a self-rect. set using 2 H tubes. 5ADA got himself a job this summer so he could have that fifty this winter. 5ATP has been playing around with YLs but is on the air constantly with his fifty. working around the world at his leisure. 5DF has been trying to work on 5 meters. 5AGA is sweating over his Lizzie. 5DF has been at work at 5YB some this summer. 5AJP lost a good fifty last month and is working with a 210 now. Traffic: 5DI 28, 5AX 24, 5ADA 21, 5ATP 18, 5WI 17, 5AKK 138, 5DF 9, 5AFS 9, 5AJP 7, 5AWF 2. FLORIDA—SCM, W. F. Grogan, 4GY—We have with us ex-1HE-1ZY who was accused of being a new- omer. He is in Jacksonville with 4MH as a call. Weleome, OM. 1BFI is also with us in Jacksonville. His call is 4KV, and he comes from QST town. Wel- ome, OM. 4NE is confined to his bed. 40B has been sick with pneumonia but able to be out now. Most of the gang are away on the Naval Cruise. 4HY and 4DD have been appointed ORS. They are hard workers, and moving traffic well. 4MS reports things are moving slow in Pensacola. YLs probably are the cause. 4TK reports very little traffic moving now. 4JZ is pounding the brass again. 4VS says his new job works him until midnight and on Sundays {HX lost an H tube but has another on the way and is putting in crystal-control’ soon. 4IY is anxiously awaiting a new motor-generator set. 4BL is operat- ing on SS Sheadle on Lake Michigan but will be on at 4BL by Christmas time. 41Z visited HQ a short time ago when he was in New York on a business trip. Traffic: 41Z 89. 40B 39, 4DD 32, 4HX 30, 4TK 20, 1JZ 10, 4VS 6, 4QY 5. QST FOR OCTOBER, 1926 WEST GULF DIVISION KLAHOMA—SCM, K. M. Ehret, 5APG—5ADO just completed his best traffic month with a newly installed 7% watter with which he works Aussies and N. Z. nearly every morning. The rest of the Cushing gang had better get busy. 5ASK is going away to college but is nat going to be beat out of his radio for he has built a portable trans- mitter and receiver. using 375 volts on a Raytheon tube with a _ well-filtered output. He reports some good work with this set and is applying for an ORS. 5ANL just moved into his new shack and is about ready to let loose the fireworks. He will be on 80 meters and a little later try 40 with another trans- mitter. He desires reliable ORS to write him for schedules. (Better get one with the SCM, OM). He is trying to work out a traffic route to handle mes- sages locally in the state. He hints that he will probably have an assistant op with him soon. (An- other job for the preacher?) 5SW and 5APG have been contemplating the con- struction of M. O’s with the result 5APG is fairly under way with his. 5QL is still hungry for greater DX and is having a regular diet of this sort. He keeps some sort of schedule with LW who is en- route to Buenos Aires. 5ZAV has his new CW in- stalled in an apartment and is proceeding to erect a station. 5AAV got back from his trip and found that somebody sat on his 7% watter while he was gone. 5AHR is on occasionally. New 5AGN has been working his station and will start at State University next month. 5AQW bids the Oklahoma Gang farewell and is on his way to California. (Best of luck, OM). We note also that old post war spark, 5HL has left for California. 5ABO is having a time getting a reply out of New Orleans regarding the renewal of his license. GOOD NEWS, Gang—we just received a letter from Mr. Hebert, Treasurer and Field Man of the ARRL, advising that he will be in Oklahoma City on Monday, November 8. What are we going to plan? Fellows, we have more reports due than we have been receiving. No matter whether you are an ORS or not, loosen up and let’s make Oklahoma the best ARRL state in the country Traffic: 5ADO 105, 5APG 15, SAGN 15, 5ANI 10, 5SW 6, 5ASK 6, 5QI 4. SOUTHERN TEXAS—SCM, E. A. Sahm, 5YK— This Section is rapidly coming forward. Some new ORS have been added and the old ones have taken new life. Present indications are that we will have a splendid winter season. Sharp and Anderson, 5AVI and 5ARF of Uvalde, a new ORS reports working CH-2AR. They report some traffic al- though they say that they had made little effort to get any before they were an ORS. Witting, 5HE of San Antonio, has come forward as one of our very best stations. He has worked PI, CH, A and Z stations. He relayed trans-Pacific tests and moved a message from San Antonio to the Philippines al- most immediately for an Army officer. 5APM re- ports poor results due to antenna trouble. 5MS has had trouble with fluctuating power supply due to remodelling of their power plant. Edward Wilkins of Mirando City has had some transmitter trouble and is putting in an Esco motor-generator. 5HS is preparing to move and is out of the air for a short period. The Hamfest of the Bexar County Radio Assn. was a huge success and the SCM had a very pleasant time there. Congratulations, the affair was put over in grand style. Traffic: 5HE 14, 5EW 13, 5MS 12, 5AVI-5ARF 6. NORTHERN TEXAS—SCM, W. B. Forrest, 5AJT Reports are somewhat better this month but with the coming of cold weather, they should be very much better for September. 5NW is operating portable 5MZ at the Corsicans Oil fields and wants to com- municate with the gang. 5AMG is hollering for traffic. 5PH, Tyler, is now OWLS No. 69 and is prepared to work on 81.3, 40.65 and 20.875 meters, using cyrstal control set. 5AMZ, Mineral Wells, is operating on 176 meters. 5SP is still repairing the station. 5HY says, “Would like some snappy QSOs with the gang who like to QSR and to QSO.” 5ACL continues with the good work, although his Mg went west. He is using RAC now. He is on 20 and 40 meters and the best DX for the month was EI-PK7 (Java). 5AJJ, Dallas. blew his WE 50 watter but is now using an H tube on 40 meters. 5QY has been sick the last month but will be ready to go again by the middle of September and wishes to take a bunch of schedules after that date His address is 1609 Lenway St., Dallas, Tex. 5QI will be at the A. & M. again this year. E. C Shaw, XV

Page 114

ow 5APE and claims he doesn’t swing He is using a portable with Hertz. old timers will remember as one of the rked HU6ZAC, from Ft. Worth, on 198 he old spark days, threatens to break AKL, Waco, is active there now and of the rest of the gang. 5SD is op’ job. 5ATX is waiting for winter the rest of them are just temporarily Y 28, 5AJJ 14, 5ACL, 7, 5QY 7, 5AKG H 3, 5AMG 3, 5APE 2. CANADA MARITIME. DIVISION NSWICK—SCM, T. B. Lacey, 1EI— rather played havoc with reports but port stillshows a good number of mes- through from some stations, notably AQ. IMD ie still on holidays. Al 20, 1AQ 15, 1AD 15, 1AK 11, 1AM 10, AN 4 DWARD ISLAND—SCM, W.A. Hyndam orte station off the air due to holidays. busy during the month was 1CO who ne good work including several messages ch WNP in Labrador. 1BZ promises ivelier immediately. O 26 riA—SCM, W. C. Borrett, 1DD—10A, tion in Glace Bay, is now on the air QSO several USA stations. 1DM is « trying to make his set look like the JST. 1ED entertained the Cape Breton nth and is trying to stir uup some new AE and IBF are about ready to burst X, the old reliable, is on practically every nas been rounding up new material and ten new members for ARRL in Halifax od for the coming fall DX work. 1AR, ounding out a wicked signal on the It seems almost impossible to raise r on our special wave band 52 meters the gang please try and use this | at least listen up there when calling r band. CHNS, the Halifax broadcast arting a class for those who would like : hams and should produce the much Will all Nova Scotia stations PLEASE 0th of each month? t forget your traffic figures X &® IDD 4. ONTARIO DIVISION . CM, W. Y. Sloan, 9BJ—CENTRAL () There has been a little more activi- part of some of the gang who are back lays but several others are away but that after the annual 9BJ hamfest at t on the 29th that the gang will be gh to tear into the fall season for now and had the misfortune to “blow’ after fighting a sync for a week play of neighboring BCLS he has ‘ volts DC (7) from his B eliminator He has a schedule with g6MU on the trip to Europe commencing Aug 22 on is giving the BCLs a treat for a by announcing from CKNC. 9BJ the ether with 150 volts on a 201A te fair results so far. He is going rer 100 volts this week and hopes to hear SEL is at present away for two » lot of work in the early part of the 26 messages and working over 200 month on a sweating fiver with a also away for two weeks and has a with him which he expects to keep mn Lake 8CK is just back from his hopes to put a new feeder line on the Y is hard at it again and also com- ame change as 3CK due to hard the same block. erimenting with the new types of Hertz antennas and hopes to be led power soon. 3VH writes from Be ay that it is a Ham's paradise for he moisture (7) which is quite abund- at the transformers and fones. 3FC very busy making a business of radio, b ittle time to work the set. When on Pacific Coast was worked several times in early evenings. He has also managed to be on 52.5 all along every Wednesday night. 3FC will start rebuilding soon and hopes to be crystal con- trolled soon on 89 meters. 3CC reports that things are humming in the little Northern town now since the new radio fac- tory was started and reports 3 new hams in the mak- ing. 3CR was pounding away with 90 volts on a Northern Peanut and working 2’s and 3’s galore until one day he got too ambitious for higher power with resultant loss of said tube He will use real high power this winter in the form of a fiver or 210 3BT of Hamilton reports that he has purchased two fifties 203A’s and he expects to have them on the air soon after the Hamfest which he will at- tend. He is going to use S tubes for rectification and he wants a “HE” transformer. He says that he has worked most of the US Districts on his low power set. 9AI has been reported heard in daylight in England and Bermuda on 37.6 meters using 170 watts input to a 204A tube. Was also copied selid for two hours 11 feet from the fones in Brooklyn, N. Y. at midday on same wave Northern District—3HP reports that he is pre- paring for a big winter. Southern District—Things are slowing up in St Catherines and 3MF is left to keep the home fires burning. 3ACO promises some real activity from his section on the Division. A live wire radio club is pepping things up. 3ABG is selling out. 3IA is going to operate a set at the Western Fair and will handle traffic. Good Biz Traffic: 3HP 12, 3EL-26, 9AL 12, 3BY 16, 3FC 5. SAI 10 QUEBEC DIVISION QUEBEC—SCM, Alex Reid, 3BE—It seems almost impossible to get the gang on the air though radio conditions were never better. Listen any evening and you will hear a bunch of foreigners, as well as the expeditions VOQ, WNP, VYG and so on. 2BB, 2CG, 2AX and 2BE are the only stations that have been at all active during the summer months. The Division expects to have a booth at the coming Radio Show to be held in Montreal during October 2D0 and 2BG are building a mew fifty watt transmitter. Both will use 50 watters. 2CC had per- fect contact with the SS Boethic, only missing her five nights and that was on account of bad QRN VYG was worked all the way from Sydney to 78 North and return. The Boethic traveled farthest North of any other expedition so far. She returned August 28. 2DM has returned to Montreal and re- ports ideal conditions, also that the QLC Club has been going very QSA. g2MU from Ireland, was in the City after having carried on tests on the SS Lord Antrim. He visited several of the local stations. : Traffic: 2CG 40, 2BE 4, 2DM 2 VANALTA DIVISION VANALTA, SCM, A. H. Asmussen, 4GT—The King-pin slipped out of the machine as for the Van- couver gang, namely 5GO, has left for a visit to China and expects to be back in the spring. He has taken some of his junk with him and hopes to be QSO or at least. log some of the gang enroute and in China. Will your call be on his list when he re- turns? Buck up there, coast gang, so QST will have a real report from you next month. 5GO, while at camp with a portable xmitter, was QSO a4AN with very small input. 4CL blew up his last 50 watter Better get a watter cooler OM. We hope you have better luck with your new H tube. 4CS must be busy threshing. If it runs over forty bushels to the acre, no doubt he will put in a 50 watter. 4AX, who once sold his outfit, is back on the air, we hope for keeps. 4AL has a new set on the air looking for traffic. 4AF, working on 40 and 80, specializes in tourists’ messages. While at Sarcee Military Camp. he held an informal ham convention, one U being present. Between schedules he spends his time making BUG keys from spikes, FORD coils and hay-wire. Hi. 4DQ hears good DX and gets reports from the Aussies. When the local power goes off, she switches to batteries. 4GT is busy changing his QRA so will not be heard for a while. 410 is still hunting for the thifd harmonic in his antenna sys- tem but managed to handle few messages on 40 meters. 4CC has installed Kenetron rectification and has a nice note QRV for any traffic. Traffic: 410 106, 4GT 6, 4AF 4, 5BF 2, 5AC 2, 4DQ 2. QST FOR OCTOBER, 1926 > an

Page 115

nos t audio his still and At last! The long-awaited Radio Amateur’s Handbook with a GOLD MINE of radio information between its covers A Manual of Amateur Short-Wave Radiotelegraphic Communication, Written by F. E. Handy, A. R. R. L. Communications Manager,and Published by The American Radio Relay League = @S7_pave-size, about 160 pp dark brown cover, gold embossed HE HANDBOOK meets and fills the long-felt need. It is at once a manual of ap- proved procedure for the most advanced of “old-timers’’, a text book on station construction and operation for the average amateur, and the finest introduction to amateur radio for the beginning amateur that has ever been published anywhere. It paints the whole picture of the greatest of modern hobbies, covering everything from so elementary a start as the explanation of what amateur radio is and how to become an amateur, up to the details of construction and operation of the most up-to- date type of amateur transmitter, and the most elusive and complex of traffic-handling procedures. Communications Department questionnaires have shown that the amateur has little idea of how his apparatus works. The Handbook explains it, in “theory” made understandable. Data and complete constructional information on the build- ing of many pieces of apparatus are given. This handbook is the Guide to Amateur Radio—‘Ye Compleat Hamme”. There isn’t a person in the world of any interest whatever in amateur radio who will not profit by owning this book. We think that every amateur in the world should want a copy. It’s the biggest dollar’s worth that ever happened. READ THE HANDBOOK AND INCREASE YOUR RADIATION! Ready in Late October—Orders Accepted New Send in Yours Today—$1 Postpaid Anywhere AMERICAN RADIO RELAY LEAGUE 1711 PARK STREET HARTFORD, CONN.

Page 116

Here’s the oldest and newest— How old is yours? Chat black little package of pitch and cardboard is the 1ddaddy of all dry “B” batteries—the first of its kind in - we rid. ‘ lot of old-timers will remember it, and for the next few iths we are going to publish on the back cover of Q. S.T. call of every “ham” who will send a radiogram, a card or or telling how many years hc has used our batteries. Send sin today. Address it to Burgess Battery Co., Madison, Wis. Burgess Batteries are used in these “ham” stations dley 1XAM 4EH 6CTP 82Z 9DDP 2AEF 4EQ 6DDN 9ASC 9DK Millan 2ALS 4KD 8ACY 9AZN 9DLK kine 2BEE 4KF S8AEA 9BSO 9DRS D 2CLA 4PX 8AMB 9CAG oP] MH 2NZ 5JF 8COR 9CYC 9EK 1NQ 2wc 6ABG sDJX 9CET c3AEL KP 3BMN 6AFP 9CFU SBI 3QP 6ALR m1AF 4DM 6BSC iis n dss £c:\ 0) Teowicy- ym eri = im }euncts