TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

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

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
DisclaimerSubmit a tube

Tube-number record

6L6

0 archive entries

Equivalent and related tube numbers

Commonly cross-referenced designations for 6L6. Compatibility is not guaranteed. Before substituting, verify socket and pinout, heater voltage and current, bias requirements, and maximum ratings against the relevant manufacturers’ datasheets.

  • 5881
  • EL37
  • KT66
BrandSylvania
ClassBeam Power Pentode
BaseOctal
Filament6.3 V @ 900 mA

Construction

Primary TypeBeam tetrode / beam power
Envelope10A-2
Sections

Datasheets

Datasheet: 6L6.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
    Single

    Filament / Heater

    Absolute Maximum Ratings

    Plate Voltage360 V
    Plate Dissipation18.5 W
    Grid 2 Voltage270 V

    Audio Performance

    Key Features
    • High sensitivity
    • High power output
    • Beam power structure
    • Suppressed secondary emission

    Typical Operation

    ModePlate VGm (µmhos)Rp (Ω)µPlate mA
    Pentode Class A1250 V600022500—72 mA
    Pentode Class A1300 V530035000—48 mA
    Pentode Class A1350 V520033000—54 mA
    Triode Class A1250 V47001700840 mA

    Application Notes

    Recommended for power output stages in radio receivers. Max heater voltage should not exceed 7.0V. Grid circuit resistance limits: 100,000 Ohms for fixed bias, 250,000 Ohms for auto-bias.