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820B

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ID = 17017
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transmitting Triode, air cooled 
Identical to 820B
Similar Tubes
Differences not known by us:
  520B

Filament Vf 22 Volts / If 34 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

 

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