Antique radios, Old Time Radios
HL512
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Country:
Great Britain (UK)
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| Identical to |
HL512
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| First year |
1925
Saga of the Vacuum Tube, Tyne page 392
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| First Source
(s) |
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.47 & 113
1925 : History of the British Radio Valve to 1940 p.157
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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 5 Volts / If 0.12 Ampere / Direct / Battery = |
| Information source |
Wireless World (The), London (WW, 79) Advertisement Jan 6 1926;
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 15
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HL512: Fin Stewart
Fin Stewart
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Just Qvigstad
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HL512: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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| Documents about this component |
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