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4B3_Ultron

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ID = 13253
       
Country:
Belgium
Brand: Ultron (tubes)
Tube type:  Triode, vacuum 
Identical to 4B3_Ultron
Similar Tubes
Normally replaceable-slightly different:
  A425 ; B438

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   


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