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
EBC 81 vacuum tube outline illustration

Tube-number record

EBC 81

0 archive entries

EBC 81 is a tube type in the TubeDatabase archive (class: Double Diode-Triode). Recorded specifications: brand Philips, construction Multi-section, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassDouble Diode-Triode
BaseNoval (B9A)
Filament6.3 V @ 230 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections3

Filament / Heater

Heater NotesIndirect heating, A.C. or D.C., parallel supply

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode section250 V120058000701 mA

Application Notes

Can be used without special precautions against microphonic effect for input voltages > 10mV for 50mW output.

Datasheets

Datasheet: EBC81.pdf

Download PDF
Loading datasheet...

Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation0.5 W
    Grid 1 Voltage-1.3 V
    Cathode Current5 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Low microphony
    • Double diode for detection
    • Triode for A.F. amplification