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B9

Information - Help 
ID = 12554
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Universal 
Identical to B9 = RE084
Similar Tubes
Normally replaceable-slightly different:
  A410N ; DZ813 ; PM3
First Source (s)
1926 : Saga of the Vacuum Tube, Tyne p.403

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eu)
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933
 
b9_radiofotos_grammont_ebay_p01_s.jpg
B9: Ebay
Patrice Zeissloff

 
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B9: Telefunken Werkstattbuch
Wolfgang Bauer

 
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B9: own collection
Peter den Boer


from Just Qvigstad


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