6KR8
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BrandGeneral Electric
ClassTriode-Pentode
BaseE9-1
Filament6.3V @ 750mA
Construction
Primary TypeTriode-Pentode
EnvelopeT-6 1/2
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation5 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Miniature triode-pentode
- Medium-mu triode
- Sharp-cutoff pentode
- Pentode intended for video amplifier use
- Triode for general-purpose use
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 200V | 20000 | 60000 | - | 19.5mA |
| Triode Section | 125V | 10400 | 4400 | 46 | 15mA |
Application Notes
The pentode is intended for use as a video amplifier and the triode for general-purpose use.
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