Antique radios, Old Time Radios
CV1681
| Base |
British-7-Pin, old (M7A)
Top contact with a cap.
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| Was used by |
Military and/or Government |
| Filament |
Vf 4 Volts / If 1.4 Ampere / Indirect / Specified voltage AND current AC/DC |
| Information source |
Babani, International Radio Tube Encyclopaedia Pages 78 & 79
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Page 36
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CV1681: Fin Stewart
Fin Stewart
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Just Qvigstad
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