Tube-number record
7289
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BrandGeneral Electric
ClassPlanar Triode
Filament6 V @ 1000 mA
Construction
Primary TypeTriode
EnvelopeMetal and Ceramic
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesHeater voltage range 4.5V to 5.7V for CW, 5.7V to 6.0V for pulse operation.
Absolute Maximum Ratings
Plate Voltage1000 V
Plate Dissipation100 W
Grid 1 Voltage-150 V
Cathode Current125 mA
Audio Performance
Key Features
- Planar electrode construction
- High transconductance
- Metal and ceramic construction
- Shock resistant
- Pulse rated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 600 V | 25000 | — | 100 | 70 mA |
| RF Power Amplifier (500 MC) | 900 V | — | — | — | 90 mA |
| RF Oscillator (2500 MC) | 1000 V | — | — | — | 90 mA |
Application Notes
Designed for grounded-grid CW oscillator, amplifier, or frequency multiplier at frequencies as high as 2500 megacycles. Suitable for plate-pulsed operation up to 3000 megacycles.
Datasheets
Datasheet: 7289.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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