|
Title: TMC Passive Voice Control unit Post by: Opcom on January 04, 2020, 08:52:17 PM Came across this TMC manual - Model PVC-1 / PVC-2. It uses a bucking winding in a dual transformer setup with apparently standard audio transformers, and a thermistor for a level detection and control element which acts upon the incoming audio power. The thermistor is not well identified, I am guessing that the less massive it is, the faster the unit reacts. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
The manual is attached. It seems pretty interesting and very simple. |