Antique radios, Old Time Radios
UX897
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Country:
United States of America (USA)
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| Identical to |
UX897
= FB49
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Was used by |
Industrial |
| Filament |
Direct |
| Description |
This is a ballast tube (baretter or resistance lamp) designed to be placed in series with a circuit to maintain constant current. This tube is listed on page 48 of "The story of Electronic Development at the General Electric Company". Dated Dec. 10th, 1930.
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| Information source |
- - Manufacturers Literature
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Just Qvigstad
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