Power supply SG 94; developed by Autophon AG, Solothurn.
To power the wireless sets from the SE206/209-family, Autophon developed a power supply for mobile use, it can be powered from vehicle batteries from 6 V, 12 V and 24 V and provides the necessary voltages for heaters and plate voltages.
The AC voltage is generated by to vibrators, one is powered by 12 / 24 V and the second by 6 V vehicle onboard voltage. There is also the possibility to connect a mains transformer NTS94, for this, you have to select the connector marked with „~“.
The power supply is activated by means of a relay when the push-to-talk pushbutton of the headset is pressed down.
The power supply is also equipped with an AF amplifier and a speaker.
Valves: V202 AF preamplifier and V203 AF final stage.
V205 in the amplifier for the microphone and line out signals.