Antique radios, Old Time Radios
3C27B
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Country:
United States of America (USA)
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| Identical to |
3C27B
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| Similar
Tubes |
Different maximum ratings:
3C27
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| First Source
(s) |
12.Sep.1947 : Electron Tube Registration List 605
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| Predecessor Tubes |
3C27
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Successor Tubes
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3C37
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| Was used by |
Radar |
| Filament |
Vf 6.3 Volts / If 2.5 Ampere / Half indirect |
| Description |
UHF pulse triode. Similar to 3C27, but rated for higher duty cycle; comes with grid radiator.
- 5 kV typical pulsed operation
- 8 kW out power at 1140MHz
- 0.005% duty cycle
- Air blast required on plate and grid radiators.
Samples were found with the grid radiator installed and the B suffix added to the original marking as 3C27. Probably a small production lot of 3C27, factory uprated to 3C27B
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| Information source |
Tube Lore (I)
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3C27B: Manufacturer's Literature
Emilio Ciardiello
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3C27B: Manufacturer's Literature
Emilio Ciardiello
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