radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

EF12spez.

Information - Help 
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 / Parallel / series 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 †
 
ef12spez1.jpg
EF12spez.: B.N.
Bernhard Nagel

 
ef12spez_so.png
EF12spez.: rtt
Michael Schlör

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


from Just Qvigstad

Usage in Models 2= 1949 ; 2= 1950

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


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg