Antique radios, Old Time Radios
B230_Hivac
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Country:
Great Britain (UK)
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| Identical to |
B230_Hivac
= B21
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
British-7-Pin, old (M7A)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Information source |
History of the British Radio Valve to 1940 p. 146 &167
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B230_Hivac: Fin Stewart
Fin Stewart
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Just Qvigstad
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