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====== SG94 ======
**Power supply SG 94**; developed by [[Autophon|Autophon AG, Solothurn]].

To power the wireless sets from the [[SE-206|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.

{{:images:se-206-sg94.jpg?direct&400|}}

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.

===== Technical Data =====
  * **Heaters voltage** 1.4 V; plate voltage +180 V for transmitter output stage, +90 V for all other circuits in the transmitter and receiver, + 45 V for plate voltage of V1-V3 is generated over a resistor from the + 90 V voltage; - 45 V to power the relay and for negative grid voltages.

{{ :images:se-206-sg94-front.jpg?direct&400|}}

Valves: V202 AF preamplifier and V203 AF final stage.\\ 
V205 in the amplifier for the microphone and line out signals.

==== Dimensions ====
  * 340 x 237 x 131 mm , 14.7 kg

==== Use ====
The power supply is used to power the [[SE-206|SE-206/209]] family sets from vehicle onboard power systems and - together with the mains transformer [[NTS94]] - also from AC mains.

{{gallery>::images?se-206-sg94*.jpg&0&80x80&lightbox&showtitle&titlesort}}

===== Technical Data =====
  * {{ :manuals:se-206-209-service.pdf |Beschreibung im Abschnitt zum SG94 im Reglement "Die Funkgeräte SE-206, SE-207, SE-208, SE-209", Anleitung für Uem Ger Mech, Regl. 65.503d}}

==== Additional Information ====
  * [[http://www.radiomuseum.org/r/autophon_speisegeraet_sg94sg_9.html|Speisegerät SG 94]] in www.radiomuseum.org.