This 3-tube circuit was found in a Radio Craft from May 1947. The circuit is powered by the mains using the loudspeaker as a microphone. The range depends on the losses in the wires.
Multistation Intercom (T1135E)
- Details
- Written by: Newton C. Braga
This 3-tube circuit was found in a Radio Craft from May 1947. The circuit is powered by the mains using the loudspeaker as a microphone. The range depends on the losses in the wires.
