Antique radios, Old Time Radios
DDT220
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Country:
Great Britain (UK)
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| Identical to |
DDT220
= H2D
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fp)
Top contact with a cap.
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| Filament |
Vf 2 Volts / If 0.1 Ampere |
| Information source |
History of the British Radio Valve to 1940 p. 146 & 166
Universal Vade-Mecum, Electron Valves and Semiconductor Devices section 291, p. 656
Taschenbuch zum Röhren-Codex 1948/49
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DDT220: Fin Stewart
Fin Stewart
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Just Qvigstad
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