Antique radios, Old Time Radios
HF3109
| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 74
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HF3109
Anonymous 10 Collector
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Just Qvigstad
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HF3109: Werk für Fernmeldewesen
Egon Strampe
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