Antique radios, Old Time Radios
ES1_Ediswan
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Country:
Great Britain (UK)
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| Identical to |
ES1_Ediswan
= R_England
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| First year |
1916
??
Saga of the Vacuum Tube, Tyne page 218
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| First Source
(s) |
1919 : History of the British Radio Valve to 1940 p. 155
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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 4 Volts / If 0.7 Ampere / Direct / Battery = |
| Description |
Ediswan version of the "R".Also made with R type designation. Made in coventional spherical bulb and also a tapered version about 50 mm diameter
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Dimensions (WHD)
incl. pins / tip |
x 118 x 55 mm / x 4.65 x 2.17 inch |
| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
British Radio Valves - The Vintage Years: 1904-1925 Page 31
Saga of the Vacuum Tube, Tyne Pages 217 & 218
-- Collector info (Sammler)
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ES1_Ediswan: rtt
Anonymous 10 Collector
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Just Qvigstad
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