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A9

Information - Help 
ID = 21624
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Universal 
Identical to A9
Similar Tubes
Normally replaceable-slightly different:
  A410

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 4 Volts / If 0.065 Ampere / Direct / Battery = /
Literature Babani, International Radio Tube Encyclopaedia   

 
a9.jpg
A9: CA
Christian ADAM

 
1_188.png
A9: Telefunken Werkstattbuch
Wolfgang Bauer

 

A9*Box
   

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