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8BU11

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BrandGeneral Electric
ClassTwin-Triode Pentode
BaseButton 12-Pin
Filament7.8V @ 0.6mA

Construction

Primary TypeTwin-Triode Pentode
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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section125V7500200000-12mA

Application Notes

The 8BU11 is a compactron containing two medium-mu triodes and a sharp-cutoff pentode.

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