Tube-number record
6GE8
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BrandTung-Sol
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 900 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Base MaterialMiniature Button 9-Pin
Sections2
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation7 W
Grid 2 Voltage275 V
Cathode Current50 mA
H-C Voltage200 V
Audio Performance
Key Features
- Low mu, high perveance triode
- Sharp cut-off pentode
- 9-pin miniature construction
- Suitable for voltage regulation applications
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 150 V | 3200 | 340000 | — | 5.5 mA |
| Triode | 150 V | 5000 | 1080 | 5.4 | 45 mA |
Application Notes
The 6GE8 is a combined low mu, high perveance triode and a sharp cut-off pentode in the 9-pin miniature construction. It is particularly suitable for voltage regulation applications.
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