Antique radios, Old Time Radios
F-660
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Country:
United States of America (USA)
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| Identical to |
F-660
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| Similar
Tubes |
Normally replaceable-slightly different:
GL-562
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| Base |
TRANSMITTING & Power-TUBES/VALVES in gen
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| Was used by |
Industrial |
| Filament |
Direct |
| Description |
This tube is a rectifier (details unknown)), having a glass bulb on a c.75 mm diameter anode. Two ceramic bead flying filament leads on top and external water cooler. According to Tube Law II, the tube may be a gridless 863.
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| Information source |
Tube Lore (II) p. 154 & 214
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| Data Compliance |
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