Barbed wire fence phone
Seems somewhat closely related to field telephones
- brief history of barbed wire fence telephone networks
- Barbed Wire Fence Telephone Exhibition
- Barbed Wire Fence Telephone II
- Pictures: 1
- Trying to get to the bottom of this Mastodon Post
- Someone else doing it: https://social.tchncs.de/@billgoats@bitbang.social/113130416060396198
- Phones seem to be some kind of POTS test telephone, available e.g. on AliExpress: Corded Phone DTMF 12 Bit LCD Display Wired Telephone
- Trying to make sense of it electrically: Mastodon Thread
- Simple Line Simulator - the thing I hint at in the reply
My own version
- Two regular phones
- Wires are just RJ11 (6P2C) to crocodile clips, for the two center pins (a + b)
- 12V power source with a 470Ohm resistor