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Tube-number record
6GB8
1 archive entry
ClassPower Pentode
BaseOctal
Filament6.3 V @ 0.9 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation25 W
Grid 2 Voltage250 V
Audio Performance
Key Features
- High transconductance
- Power output
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 250 V | 11300 | — | — | 72 mA |
Application Notes
Commonly used in audio power output stages and television vertical deflection circuits.
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