Antique radios, Old Time Radios
BELF
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Country:
Great Britain (UK)
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| Identical to |
BELF
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| First Source
(s) |
1925 : British Radio Valves - The Vintage Years: 1904-1925 p. 28 &114
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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 3.5 Volts / If 0.5 Ampere / Direct / Battery = |
| Description |
Anode Volts 40-100, neg grid Volts 4, ra=12K, gm=0.5, u=6.
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| Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 15
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BELF: Fin Stewart
Fin Stewart
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Just Qvigstad
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