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EF12spez.

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ID = 18600
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to EF12spez.
Similar Tubes
Multiple differences or of other kind:
  EF12

Base German Steel Y8A, 1938
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description Special version as FM-IF amplifier w/ metal envelope connected to separate pin.
AVO Test data indicates 25% lower Gm. 
Text in other languages (may differ)
Tube prices 5 Tube prices (visible for members only)

ef12s.gif
EF12spez.: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

ef12spez_so.png EF12spez.: rtt
Anonymous 10 Collector


Just Qvigstad
ef12s.png
EF12spez.: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

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Usage in Models 2= 1949 ; 2= 1950

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


Collection of

 
ef12spez1.jpg

EF12spez.
 

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