Tube-number record
7911
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BrandGeneral Electric
ClassPlanar Triode
Filament6.3 V @ 550 mA
Construction
Primary TypeTriode
EnvelopeCeramic-Metal
SectionsSingle
Filament / Heater
MaterialCoated Unipotential
Warm-up Time60s
Heater NotesHeater characteristics and ratings: 6.3V +/- 0.3V
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation6.5 W
Grid 1 Voltage-100 V
Cathode Current3 mA
H-C Voltage50 V
Audio Performance
Key Features
- Ceramic and metal planar construction
- High-mu triode
- Intended for use as a plate-pulsed oscillator or amplifier at frequencies up to 6000 megahertz
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 200 V | 25000 | 2300 | 58 | 23 mA |
| Plate-Pulsed Oscillator Service | 3000 V | — | — | — | 2.5 mA |
Application Notes
The regulation and/or series plate-supply impedance must be such as to limit the peak current, with the tube considered a short circuit, to a maximum of 25 amperes. Applications with a duty factor greater than 0.001 should be referred to General Electric.
Datasheets
Datasheet: 7911.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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