Antique radios, Old Time Radios
B21_BTH
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Country:
Great Britain (UK)
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| Identical to |
B21_BTH
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| First year |
1927
Saga of the Vacuum Tube, Tyne Seite 390
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.1 Ampere / Direct / Battery = |
| Information source |
History of the British Radio Valve to 1940 Page 163
British Radio Valves - The Classic Years: 1926-1946 Supplement p. 14
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B21_BTH: Fin Stewart
Fin Stewart
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Just Qvigstad
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