Antique radios, Old Time Radios
210SPT_4pin
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Country:
Great Britain (UK)
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| Identical to |
210SPT_4pin
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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
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
If 0.1 Ampere / Direct |
| Information source |
History of the British Radio Valve to 1940 p. 145 & 195
Babani, International Radio Tube Encyclopaedia p. 28 & 29
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
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210SPT_4pin: Fin Stewart
Fin Stewart
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Just Qvigstad
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