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415QD_4pin

Information - Help 
ID = 21262
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to 415QD_4pin = B443_4pin
Similar Tubes
Other base:
  B443

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 4 Volts / If 0.15 Ampere / Direct
Literature Taschenbuch zum Röhren-Codex 1948/49   
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415qd4pin_so.png
415QD_4pin: rtt
Michael Schlör

 

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