Antique radios, Old Time Radios
A4475
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Country:
United States of America (USA)
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| Identical to |
A4475
= 6AS7G
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Filament |
Vf 6.3 Volts / If 2.5 Ampere / Indirect / Specified voltage AC/DC |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 272
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A4475: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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