8BU11
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BrandGeneral Electric
ClassTwin-Triode Pentode
BaseCompactron
Filament7.8V @ 0.6mA
Construction
Primary TypeDual triode
EnvelopeT-9
Base MaterialGlass
Sections3
Filament / Heater
Heater NotesHeater warm-up time: 11 seconds
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation2.65 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Compactron
- Medium-mu triodes
- Sharp-cutoff pentode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 125V | 7500 | 200000 | - | 12mA |
Application Notes
The 8BU11 is a compactron containing two medium-mu triodes and a sharp-cutoff pentode.
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