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A420

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ID = 13701
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Triode, vacuum 
Identical to A420
Similar Tubes
Normally replaceable-slightly different:
  A408

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.085 Ampere / Direct
Information source Taschenbuch zum Röhren-Codex 1948/49   

1_9.png A420: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

Collection of a member from D
 
a420.jpg

 

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