Vacuum Tubes
Encyclopaedia Britannica Films, Inc.
EducationScience
Clips are not offered for this film: no licence or public-domain mark is recorded for it.
Parts
About
Explains by animated drawings, the operation of a radio vacuum tube in terms of its filament, plate, and grid circuits. Illustrates three functions of the vacuum tube in the radio: how it serves as an amplifier to operate the loud-speaker, as a rectifier in detection, and as an oscillator to generate the carrier wave.
Human-made No record of this work says a model made it. What this means.
- Archive
- Internet Archive, in Academic films
- Licence or status
- The Internet Archive states none for this item.
- Rights statement
- Courtesy Encyclopaedia Britannica,Inc.
- Credit
- Encyclopaedia Britannica Films, Inc.
- Who can watch
- The archive gives no rating. Invisible Network shows it to Kids profiles and older, judged from its collection and subjects. How films are placed
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