Tube-number record
GL-7393
0 archive entries
GL-7393 is a tube type in the TubeDatabase archive (class: Traveling-Wave Tube). Recorded specifications: brand General Electric, construction Other / special, socket Special / none, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassTraveling-Wave Tube
BaseSpecial / none
Filament6.3 V @ 300 mA
Construction
Primary TypeOther / special
EnvelopeMetal-Ceramic
SectionsSingle
Filament / Heater
Heater NotesHeater voltage regulation of +/- 10 percent recommended
Absolute Maximum Ratings
Plate Dissipation1 W
Audio Performance
Key Features
- Low noise
- Broadband
- Ruggedized
- Permanent Magnet Focusing
- Metal-and-ceramic construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Broadband RF Amplifier | 650 V | — | 50 | — | 0.675 mA |
Application Notes
Particularly useful in military systems as input tube for radar receivers; provides protection to crystal mixer.
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