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BA9

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ID = 13825
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Audio Frequency 
Identical to BA9
Similar Tubes
Normally replaceable-slightly different:
  A209 ; RE062

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 1.7 Volts / If 0.06 Ampere / Direct
Description

Im "Amateur Wireless 23.9.1929" wird Uf= 1,9V bei If= 0.05A angegeben.

 
Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 12
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 65, p. 118
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

ba9_sock.png BA9: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

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