Antique radios, Old Time Radios
4H-20
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Country:
United States of America (USA)
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| Identical to |
4H-20
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
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| Information source |
-- Original-techn. papers. Schematic to ID = 157575 Rogers 400 Combination
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
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