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Radio-Micro-Bivolt

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ID = 50018
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to Radio-Micro-Bivolt

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 1.8 Volts / If 0.25 Ampere / Direct / Battery =
Description The brand is Radiotechnique. On the box in English: Vf=1.8 Volt, If=0.25 A, Is=10 mA, Ri=30.000 Ohm, g=8 to 9. 
Dimensions (WHD)
incl. pins / tip
38 x 96 x 37 mm / 1.50 x 3.78 x 1.46 inch
Weight 48 g / 1.69 oz


Just Qvigstad

Collection of

 
radiomicrobivolt.jpg

Radio-Micro-Bivolt
 

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