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B23

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ID = 13798
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: BTH (B.T.H.), British Thomson-Houston Co, Ltd. 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to B23

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 1.7 Volts / If 0.06 Ampere / Direct
Information source History of the British Radio Valve to 1940   p. 163
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 85, p. 118
Taschenbuch zum Röhren-Codex 1948/49


Just Qvigstad
Usage in Models 1= 1927

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

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