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20AM1

Information - Help 
ID = 22682
       
Country:
Spain
Brand: Castilla; Madrid
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 20AM1
Similar Tubes
Normally replaceable-slightly different:
  B2047

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / Indirect
Information source -- Collector info (Sammler)   

20am1_so.png 20AM1: rtt
Anonymous 10 Collector


Just Qvigstad
 

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