Antique radios, Old Time Radios
D4_Radion
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Country:
Great Britain (UK)
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| Identical to |
D4_Radion
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| First Source
(s) |
1924 : British Radio Valves - The Vintage Years: 1904-1925 P. 59 &120
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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 4 Volts / If 0.25 Ampere / Direct / Battery = |
| Information source |
History of the British Radio Valve to 1940 P. 6, 150 & 156
British Radio Valves - The Classic Years: 1926-1946 P. 251 & 332; Supplement p. 85
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D4_Radion: Fin Stewart
Fin Stewart
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Just Qvigstad
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D4_Radion: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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