Antique radios, Old Time Radios
620T
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Country:
Great Britain (UK)
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| Identical to |
620T
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| Similar
Tubes |
Normally replaceable-slightly different:
HV65
Other base:
620T_UX
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Predecessor Tubes |
600T
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6 Volts / If 2 Ampere / Direct / Specified voltage AC/DC |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 36 & 37
History of the British Radio Valve to 1940 p. 145 & 171
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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620T: Fin Stewart
Fin Stewart
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Just Qvigstad
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