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H.L.C.210

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ID = 85681
       
Country:
Great Britain (UK)
Brand: Adey Radio; London
Developer: Adey Radio; London 
Tube type:  Triode, vacuum   Universal 
Identical to H.L.C.210

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct
Description

This tube was specially designed and had three grooves around the bakelite base where a choke could be wound. The tube was made for Adey by the Hivac company

 
Information source British Radio Valves - The Vintage Years: 1904-1925   p. 237


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