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LF_B4

Information - Help 
ID = 72163
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to LF_B4
Similar Tubes
Other base:
  LF_Cossor_4V_UX ; LF_Cossor_UV

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Information source -- Collector info (Sammler)   
 
cossor_point_one_det_l.f..jpg
LF_B4: National Valve Museum
Fin Stewart

 
b4_1~~91.png
LF_B4: Fin Stewart
Fin Stewart

 

from Just Qvigstad


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