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B2_MOV

Information - Help 
ID = 48748
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 very rare. ***
Identical to B2_MOV

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 1.4 Ampere / Direct / Battery =
Description

Pa <30W.

An example was exhibited by MOV at the Physical Society, London in 1920.

 
Information source -- Collector info (Sammler)   
 
osram_b2_mcvitie.jpg
B2_MOV: Science Museum London
Fin Stewart

 
b4_base_pins~~197.png
B2_MOV: Fin Stewart
Fin Stewart

 

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