Antique radios, Old Time Radios
IRF40
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Country:
Great Britain (UK)
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| Identical to |
IRF40
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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 |
Direct |
| Information source |
British Radio Valves - The Classic Years: 1926-1946 p. 246
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Just Qvigstad
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