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HP604

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ID = 15889
       
Country:
France
Brand: Celsior (tubes), Radio-Celsior; Paris
Tube type:  Triode, vacuum   Power/Output 
Identical to HP604
Similar Tubes
Normally replaceable-slightly different:
  B405
First Source (s)
1930 : Saga of the Vacuum Tube, Tyne p.410

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.15 Ampere / Direct
Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 40
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 103, p. 138
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia

b4_base_pins~~849.png HP604: Fin Stewart
Fin Stewart


Just Qvigstad
 

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