Antique radios, Old Time Radios
N31
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Vacuum Pentode Power/Output |
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| Identical to |
N31
= PTS
= KT31
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Successor Tubes
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KT31
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| Base |
British-7-Pin, old (M7A) (Codex=N)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 26 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
Also available with 13 v, .6 a heater.
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| Information source |
The Saga of Marconi Osram Valve p. 333
History of the British Radio Valve to 1940 p. 147 & 189
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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N31: Frank Philipse
Wolfgang Holtmann
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Just Qvigstad
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N31: My schematic collection.
Pier Antonio Aluffi
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):18
Collection of
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