Antique radios, Old Time Radios
4A
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Country:
United States of America (USA)
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| Identical to |
4A
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| Filament |
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| Description |
used in 2V - Battery Sets
Text in other
languages (may
differ)
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| Information source |
Ballast Tube Handbook, The
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4A
Emilio Ciardiello
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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