Antique radios, Old Time Radios
K77A
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Country:
Great Britain (UK)
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| Identical to |
K77A
= QP22A
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| Base |
B9 British 9-Pin
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.5 Ampere / Direct |
| Information source |
History of the British Radio Valve to 1940 p. 142
Babani, International Radio Tube Encyclopaedia P. 112 & 113
Taschenbuch zum Röhren-Codex 1948/49
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K77A: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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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):4
Collection of
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