Antique radios, Old Time Radios
FP-57
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Country:
United States of America (USA)
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| Identical to |
FP-57
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| Similar
Tubes |
Normally replaceable-slightly different:
850
; UV850
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| Base |
Jumbo 4-pin bayonet (1918)
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 10 Volts / If 3.25 Ampere / Direct / Specified voltage AC/DC |
| Description |
this tube was designed by GE as an industrial version of the UV850. It is described as a Power Pliotron
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Dimensions (WHD)
incl. pins / tip |
x 220 x 55 mm / x 8.66 x 2.17 inch |
| Information source |
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
Tube Lore (II) p. 212
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FP-57: Fin Stewart
Fin Stewart
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Just Qvigstad
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