Antique radios, Old Time Radios
FU-500F
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Country:
People's Republic of China
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| Identical to |
FU-500F
= 4X500A
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| Base |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 13.5 Ampere / Direct |
| Description |
Integral radiator, special 4-pin base with metal ring connected to G2. Glass spacer.
- 500 W max plate dissipation with forced air cooling
- 120 MHz max frequency full ratings, up to 250 MHz at reduced ratings.
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| Weight |
765 g / 26.98 oz |
| Information source |
-- Original prospect or advert
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FU-500F: Fin Stewart
Fin Stewart
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