Antique radios, Old Time Radios
FR-300
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Country:
United States of America (USA)
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| Identical to |
FR-300
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| Similar
Tubes |
Normally replaceable-slightly different:
864
; UX864
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Was used by |
Industrial |
| Filament |
Vf 1.1 Volts / If 1.25 Ampere / Direct / Specified current AC/DC ~ = (Series working) |
| Description |
This tube was designed by GE as an industrial version of the UX864. It is described as a Pliotron. Low microphonic.
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Dimensions (WHD)
incl. pins / tip |
x 90 x 30 mm / x 3.54 x 1.18 inch |
| Weight |
32 g / 1.13 oz |
| Information source |
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
Tube Lore (II) p. 79 & 213
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FR-300: Fin Stewart
Fin Stewart
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Just Qvigstad
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