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B210L

Information - Help 
ID = 52908
       
Country:
Great Britain (UK)
Brand: BTH (B.T.H.), British Thomson-Houston Co, Ltd.
Developer: BTH (B.T.H.), British Thomson-Houston Co, Ltd. 
Tube type:  Triode, vacuum 
Identical to B210L

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description Claimed by Designer to be first with long nickel filaments. 
Literature The Wireless World, London (WW, 79)   Advt by BTH Oct 26 1927
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b210l_1.jpg
B210L: Frank Cuffe
Frank Cuffe

 


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