Antique radios, Old Time Radios
2K39
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Country:
United States of America (USA)
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| Identical to |
2K39
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| First Source
(s) |
10.Nov.1945 : Electron Tube Registration List
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 6.3 Volts / If 1.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
7500 to 10300 MHz
Integral cavity
1250V resonator, -750V reflector, 60mA beam, 250 mW output; forced-air cooling required. similar to 2K41 with different tuning range.
Heater current lowered to 1A since 1953.
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| Information source |
- - Manufacturers Literature
Tube Lore (I)
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Just Qvigstad
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2K39: Manufacturer's Literature
Emilio Ciardiello
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