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
SHARP-CUTOFF PENTODE AND MEDIUM-MU TRIODE vacuum tube outline illustration

Tube-number record

SHARP-CUTOFF PENTODE AND MEDIUM-MU TRIODE

0 archive entries

SHARP-CUTOFF PENTODE AND MEDIUM-MU TRIODE is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand General Electric, construction Multi-section, base Small Button 9-Pin, socket Noval (B9A), maximum plate voltage 350 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 0.45 mA

Construction

Primary TypeMulti-section
EnvelopeT-6 1/2 Glass
Base MaterialSmall Button 9-Pin
Sections2

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section125 V7500200000—12 mA
Triode Section125 V850054004613.5 mA

Application Notes

The pentode section is intended primarily for service as an oscillator in the horizontal deflection system of television receivers.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage350 V
    Plate Dissipation2.5 W
    Grid 2 Voltage330 V
    Cathode Current20 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Separate cathodes
    • Sharp-cutoff pentode
    • Medium-mu triode
    • Electrically independent sections