Antique radios, Old Time Radios
DR2_Ediswan
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Country:
Great Britain (UK)
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| Identical to |
DR2_Ediswan
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| Similar
Tubes |
Normally replaceable-slightly different:
A209
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| First year |
1924
History of the British Radio Valve to 1940 p. 158
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| First Source
(s) |
1926 : -- Collector info (Sammler) "The Ediswan Range of Valves"
1925 : Saga of the Vacuum Tube, Tyne p.373
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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 0.1 Ampere / Direct / Battery = |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 85, p. 118
Röhren-Vademecum; P.H. Brans; Antwerpen p. 25
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DR2_Ediswan: Fin Stewart
Fin Stewart
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Just Qvigstad
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