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

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Tube-number record

6K4

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BrandSylvania
ClassGeneral Purpose Triode
BaseFlexible / flying leads
Filament6.3 V @ 150 mA

Construction

Primary TypeTriode
EnvelopeT-3
Base MaterialFlexible Leads
SectionsSingle

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation3 W
Cathode Current20 mA
H-C Voltage90 V

Audio Performance

Power Output0.75 W
Key Features
  • Sub-Miniature
  • High frequency
  • Shock resistant
  • Vibration resistant

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
General Purpose200 V345046501611.5 mA

Application Notes

Designed for use in high frequency applications requiring a very small, light-weight tube. At frequencies of around 500 Mc., an output of approximately 3/4 Watt may be obtained when used in a suitable circuit.

Datasheets

Datasheet: 6K4.pdf

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

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