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ID = 49149
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  TRANSMITTING TUBE (general) 
  Ca. 1925 up to 1945 rare.
Identical to P6_Grammont
Similar Tubes
Normally replaceable-slightly different:

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4.5 Volts / If 1 Ampere / Direct
Description Used as oscillator and modulator in transmitting sets and also used as LF power amplificator. 
Dimensions (WHD)
incl. pins / tip
52 x 138 x 37 mm / 2.05 x 5.43 x 1.46 inch
Weight 78 g / 2.75 oz
Literature - - Manufacturers Literature   
- - Manufacturers Literature   2-9-1933
P6_Grammont: own collection
Peter den Boer

P6_Grammont: own collection
Peter den Boer

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