Antique radios, Old Time Radios
R2/R3
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Country:
Great Britain (UK)
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| Identical to |
R2/R3
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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 |
Half indirect |
| Description |
This tube has both R2 and R3 as the type number. These two tubes are the same except that the maximum anode voltage for the R2 is 350 and R3 is 500. The two tubes are listed as Brimar in "British Radio Valves The Classic Years 1926 - 1946", Rectifier section, page 141.
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Just Qvigstad
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