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C25

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ID = 13864
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to C25 = RE034
Similar Tubes
Normally replaceable-slightly different:
  A425 ; DZ2222 ; HL410 ; HR406

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933
 
c25.jpg
C25: H S
Hugo Sneyers

 
1_197.png
C25: Telefunken Werkstattbuch
Wolfgang Bauer

 
miniwattsmall2_9.png
C25: own collection
Peter den Boer


from Just Qvigstad

Usage in Models 1= 1927?? ; 1= 1927? ; 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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