Antique radios, Old Time Radios
PP2018_B7
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Country:
Hungary
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| Identical to |
PP2018_B7
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| Similar
Tubes |
Other base:
PP2018
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| First Source
(s) |
1933 : The Valve Museum
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| Base |
British-7-Pin, old (M7A)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 20 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working) |
| Information source |
History of the British Radio Valve to 1940 p. 152
Babani, International Radio Tube Encyclopaedia p. 130 & 131
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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PP2018_B7: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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