Antique radios, Old Time Radios
HF3104
Base |
Octal (Int.Octal, IO) K8A, USA 1935
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Was used by |
Radio/TV-reception etc. |
Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 245
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HF3104
Anonymous 10 Collector
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Just Qvigstad
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HF3104: Werk für Fernmeldewesen Schöneweide
Egon Strampe
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