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Unknown_B4-triode

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ID = 73251
       
 
   
Tube type:  Triode, vacuum 
Identical to Unknown_B4-triode

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3.75 Volts / If 0.06 Ampere / Direct / Battery =


Just Qvigstad
Usage in Models 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

 
unknown_b4_triode.jpg

Unknown_B4-triode
 

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