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Micro_JB

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ID = 57496
       
 
   
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to Micro_JB

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Direct / Battery =
Description Engraved in the chrome plated base: Triode Micro JB, Paris 
Dimensions (WHD)
incl. pins / tip
32 x 102 x 31 mm / 1.26 x 4.02 x 1.22 inch
Information source - - -   
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Just Qvigstad

Collection of

 
micro_jb.jpg

Micro_JB
 

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