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EC903

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ID = 18588
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to EC903

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.185 Ampere / Indirect
Tube prices 2 Tube prices (visible for members only)
  ec903.gif
  EC903: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
ec903.jpg
EC903: Herbert Flick
Herbert Flick

 
ec903_sockel.png
EC903: Telefunken Röhrenhandbuch
Wolfgang Bauer

 
ec903.png
EC903: Telefunken Röhrenhandbuch
Wolfgang Bauer


Usage in Models 1= 1957?? ; 1= 1960?? ; 2= 1965??

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


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