Antique radios, Old Time Radios
447A
Country:
United States of America (USA)
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Identical to |
447A
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Base |
Noval, 9 pin miniature (USA pico-9) B9A
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Filament |
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Description |
Voltage reference and indicator; 82V, 8mA.
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Information source |
Tube Lore (I)
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Just Qvigstad
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