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BD9

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ID = 36382
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Power/Output 
Identical to BD9
Similar Tubes
Normally replaceable-slightly different:
  P215_Marconi

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.9 Volts / If 0.2 Ampere / Direct / Battery =
Information source - - Manufacturers Literature   Amateur Wireless 23.9.1929
Röhren-Vademecum; P.H. Brans; Antwerpen   p. 12
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

b4_base_pins~~928.png BD9: Fin Stewart
Fin Stewart


Just Qvigstad

Collection of

 
bd9.jpg

 

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