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EF172_8p

Information - Help 
ID = 69536
       
Country:
Germany
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 
  Late but very rare. ***
Identical to EF172_8p
Similar Tubes
Other base:
  EF12 ; EF172
First Source (s)
Jan.1951 : Funkschau # 1
Successor Tubes EF172  

Base GNOM 8 pin (DDR)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.32 Ampere / Indirect / Parallel, (AC/DC)
Description

8-pol. Sockel nur als Prototyp

 
Literature
 
ef172_8_pol.jpg
EF172_8p: Helmut Weigl
Helmut Weigl

 
sockel_ef175_2~~1.png
EF172_8p: Röhrencodex 1951
Helmut Weigl

 
ef172_daten.png
EF172_8p: RFT Datenbuch 1952
Helmut Weigl



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