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ID = 13476
Great Britain (UK)
Brand: British Pix Co., Ltd., The; London
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 90AC
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect

Tube made in Europe for the company.

Anode volts 200, current 3 mA

Information source British Radio Valves - The Classic Years: 1926-1946   P. 270 & 332; Supplement p. 82
History of the British Radio Valve to 1940   P. 5 & 131
Taschenbuch zum Röhren-Codex 1948/49

b5~~53.png 90AC: Fin Stewart
Fin Stewart

Just Qvigstad

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