Antique radios, Old Time Radios
FM500
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Country:
United States of America (USA)
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| Identical to |
FM500
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| Similar
Tubes |
Normally replaceable-slightly different:
UY224
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| Base |
UY-Base, 5 Pins (USA, April 1927) (Codex=Ha)
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 2.5 Volts / If 1.7 Ampere / Indirect / Specified voltage AC/DC |
| Description |
This tube was designed as an industrial version of the UY224. It was described by GE as a screen grid pliotron, AC.
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Dimensions (WHD)
incl. pins / tip |
x 123 x 45 mm / x 4.84 x 1.77 inch |
| Weight |
48 g / 1.69 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature GE Vacuum Tube Designations 12/10/1930
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FM500: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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