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ID = 19281
Brand: Funkwerk Erfurt, VEB, RFT (Ostd.) - vorm. Telefunken GmbH
Developer: Funkwerk Erfurt, VEB, RFT (Ostd.) - vorm. Telefunken GmbH 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
  Late but very rare. ***
Identical to EF171
Similar Tubes
Other characteristic (electr. data):
  EF176 ; EF177
Heater different:
First Source (s)
Jan.1951 : Funkschau # 1
Predecessor Tubes RV12P2001  

Base GNOM 11-pin (DDR)
Filament Vf 6.3 Volts / Indirect
Description 8-pol. Sockel nur als Prototyp, 11-pol. nicht in Serie gegangen, als EF176 für UKW mit liegendem System weiter entwickelt, keine Serienreife mehr. 
EF171: Datenblatt Funkwerk Erfurt
Wolfgang Eckardt

More ...
EF171: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

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