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

Tube-number record

TRIPLE-DIODE TRIODE

0 archive entries

TRIPLE-DIODE TRIODE is a tube type in the TubeDatabase archive (class: High-Mu Triode and Detector). Recorded specifications: brand TUNG-SOL, year 1949, construction Other / special, base Intermediate Shell 8-Pin Octal, socket Octal, maximum plate voltage 300 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.

BrandTUNG-SOL
ClassHigh-Mu Triode and Detector
BaseOctal
Filament12.6 V @ 150 mA

Construction

Primary TypeOther / special
EnvelopeT-9
Base MaterialIntermediate Shell 8-Pin Octal
Sections4 (1 Triode, 3 Diodes)

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Unit Case 1100 V9001100001000.4 mA
Triode Unit Case 2250 V1100910001000.9 mA

Application Notes

Recommended that diode #4 (pin 3) and diode #3 (pin 4) be used in balanced detector circuits. One cathode is common to two diodes and the triode unit.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage300 V
    Plate Dissipation0.5 W
    H-C Voltage90 V

    Audio Performance

    Typical THD5%
    Key Features
    • Coated unipotential cathodes
    • One diode has a separate cathode
    • Balanced discriminator or detector capability
    • FM/AM combined detection
    • Skirted miniature cap