Tube-number record
8268
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BrandAmperex
ClassWater-cooled power triode
Construction
Primary TypeTriode
EnvelopeGlass and Metal
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation6000 W
Grid 1 Voltage-1250 V
Cathode Current1800 mA
Audio Performance
Key Features
- Water-cooled
- Safety margin grid material
- Intended for industrial RF heating generators
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| General Characteristics | 6000 V | 12000 | 2000 | 24 | 1000 mA |
| HF Class C oscillator (loaded) | 7200 V | — | — | — | 1500 mA |
| HF Class C oscillator (loaded) | 6200 V | — | — | — |
Application Notes
At frequencies above 4 mc the two grid terminals must be connected in parallel. RF current should be distributed equally to avoid excessive grid seal temperatures.
Datasheets
Datasheet: 8268.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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