Antique radios, Old Time Radios
RC410
Country:
Great Britain (UK)
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Identical to |
RC410
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Similar
Tubes |
Normally replaceable-slightly different:
A425
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First Source
(s) |
1928 : History of the British Radio Valve to 1940 p. 162
Aug.1930 : Philips Bulletin R1164, p. 31
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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 0.1 Ampere / Direct / Battery = |
Description |
Dull emitter resistance coupling valve. Ri = 61 kOhm. Slope 0.65 mA/V.
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Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 33
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RC410: Fin Stewart
Fin Stewart
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Just Qvigstad
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