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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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8BU11 vacuum tube outline illustration

Tube-number record

8BU11

0 archive entries

8BU11 is a tube type in the TubeDatabase archive (class: Twin-Triode Pentode). Recorded specifications: brand General Electric, year 1965, construction Dual triode, base Glass, socket Compactron, maximum plate voltage 330 V, and maximum plate dissipation 2.65 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassTwin-Triode Pentode
BaseCompactron
Filament7.8 V @ 0.6 mA

Construction

Primary TypeDual triode
EnvelopeT-9
Base MaterialGlass
Sections3

Filament / Heater

Heater NotesHeater warm-up time: 11 seconds

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section125 V7500200000—12 mA

Application Notes

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

Filters

0 tubes found

Manufacturers

Brands

    0 results
    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