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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)
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Tube-number record

VTP 6440

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BrandVacuum Tube Products
ClassPirani Vacuum Gauge Tube
BaseSpecial / none
Filament10 V @ 100 mA

Construction

Primary TypeOther / special
EnvelopeMetal
SectionsDual filaments

Filament / Heater

MaterialPlatinum ribbon
Heater NotesCurrent varies from 100mA normal to 300mA maximum

Absolute Maximum Ratings

Cathode Current300 mA

Audio Performance

Key Features
  • All-metal welded construction
  • Platinum ribbon filament
  • Fast response to pressure changes
  • Ruggedized
  • Dual filament Wheatstone bridge compatible

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Normal Operation——60—100 mA

Application Notes

Used for measurement of pressures in the range of .1 to 5000 microns. Relatively non-sensitive to radiant heat.

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