TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

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)
DisclaimerA–Z indexSubmit a tube
TWIN TRIODE vacuum tube outline illustration

Tube-number record

TWIN TRIODE

0 archive entries

TWIN TRIODE is a tube type in the TubeDatabase archive (class: Series-regulator tube). Recorded specifications: brand General Electric, construction Dual triode, base Micanol, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 13 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassSeries-regulator tube
BaseOctal
Filament6.3 V @ 2.5 mA

Construction

Primary TypeDual triode
EnvelopeT-12
Base MaterialMicanol

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Each Section135 V70002802125 mA
Zero-Bias40 V———150 mA

Application Notes

Primarily designed for service as a series-regulator tube in d-c power supplies and booster scanning services. Operation with fixed bias is not recommended.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation13 W
    Cathode Current125 mA
    H-C Voltage300 V

    Audio Performance

    Key Features
    • Low-mu twin triode
    • Controlled zero-bias plate current
    • Low-loss phenolic base
    • Short Medium-Shell Octal 8-Pin Micanol base