Antique radios, Old Time Radios
FE12
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Country:
United States of America (USA)
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| Identical to |
FE12
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Successor Tubes
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UX222
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
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| Filament |
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| Description |
Paperwork surfaced in 2023 to explain these early developmental samples. These were crafted at the Edison Lamp Works of General Electric, for RCA. These developmental tubes laid the groundwork for the UX222
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| Information source |
-- Original-techn. papers. Gillespie Collection
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Just Qvigstad
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Collection of
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