Antique radios, Old Time Radios
W31
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Country:
Great Britain (UK)
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| Identical to |
W31
= VPTS
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| Base |
British-7-Pin, old (M7A) (Codex=Nc)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 13 Volts / If 0.3 Ampere / Indirect |
| Information source |
The Saga of Marconi Osram Valve p. 335
History of the British Radio Valve to 1940 p. 148 & 196
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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W31: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17
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