WWII German Panzer division (Wehrmacht) 80 W. S. a 80 Watt Sender a - SABA - 49402 - - Original, complete, RARE WWII German 80 W. S. a 80 Watt Sender. Used: In tank division and tank brigade radio sets especially in liaison operations with reconnaissan
Original, complete, RARE WWII German 80 W. S. a 80 Watt Sender. Used: In tank division and tank brigade radio sets especially in liaison operations with reconnaissance cars and tanks. It is replacing the 30W.S.a in the German Army. German receivers appropriate for use with this transmitter are types Torn.E.b, and Mw.E.c.
The 80 W.S.a is a vehicular-type, medium-frequency, radio transmitter. Interconnections between the transmitter and receiver permit the transmitting antenna to be use for reception in the "off" and "standby" positions of the main switch. Both voice and telegraph transmissions are monitored by the receiver (Mw.E.c, Torn.E.b and Lw.E.a).
The transmitter is enclosed in a metal casing. A brass strip, approximately 2 cm wide and 24 cm long runs from front to back on each side of the top of the metal casing and insures good ground contact with the metal frame into which the casing is fitted in the vehicle.
Eight controls on the front panel are:
3-position band switch
Main tuning knob
5-position antenna coupling knob
5-position antenna tuning knob (coarse tuning)
Continuously-variable antenna tuning knob (fine tuning)
Frequency check switch (thrown by raising the lid over the headset jack which is used during frequency calibration)
4-position main switch
Output power decrease switch (from 80 to 10 Watts)
The telegraph key is inserted in the two-contact jack at the extreme lower left corner of the front panel and the microphone plug is inserted in the three-contact jack beside it. The frequency dial is calibrated in kHz and is numbered every twenty kHz. The dial is illuminated by a blue pilot light which is removable through a spring-hinged lid in back of the dial.
For telegraphy operation, the key completes the circuit to a 12 volt relay which in turn by-passes to ground the excessive grid bias applied to the grids of the RF oscillator and the RF amplifier tubes. In telephony operation, the suppressor grids of the RF amplifier tubes are modulated. A pair of RV12P2000 tubes in parallel acts as a single speech amplifier with transformer input and transformer output.