# BSTJ 2: 3. July 1923: Telephone Equipment for Long Cable Circuits. (Demarest, Charles S.)

Bell System Technical Journal, 2: 3. July 1923 pp 112-140. Telephone Equipment for Long Cable Circuits. (Demarest, Charles S.)

- Kind: Magazine
- Series: BSTJ 2: 3. July 1923: Telephone Equipment for Long Cable Circuits
- Year: 1923
- Archive: [Internet Archive](https://archive.org/details/bstj2-3-112)
- Licence or status: none stated by the archive
- Who can read it: Tweens profiles and older (placed by Invisible Network from what the archive says)

[Read it](https://invisiblenetwork.ai/print/ia/bstj2-3-112/read)