Antique radios, Old Time Radios
P220_Mazda
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Country:
Great Britain (UK)
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| Identical to |
P220_Mazda
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct |
| Information source |
History of the British Radio Valve to 1940 p. 148 & 167
Babani, International Radio Tube Encyclopaedia p. 124 & 125
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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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):3
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