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

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Tube-number record

6463

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BrandMullard
ClassSpecial Quality Double Triode
BaseNoval (B9A)
Filament6.3 V @ 600 mA

Construction

Primary TypeDual triode
EnvelopeGlass
Base MaterialGlass
Sections2

Filament / Heater

Heater NotesSuitable for parallel operation only, a.c. or d.c. Heater is centre-tapped.

Absolute Maximum Ratings

Plate Voltage330 V
Plate Dissipation4.4 W
Grid 1 Voltage-85 V
Cathode Current31 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Separate cathodes
  • Stability of characteristics
  • Long life
  • Cut-off emission capability
  • Shock and vibration resistant

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation250 V520038502014.5 mA

Application Notes

Designed for use in industrial equipment. Not intended for circuits critical with regard to hum, microphony or noise.

Datasheets

Datasheet: 6463.pdf

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

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