Tube-number record
VTP 6535
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BrandVacuum Tube Products
ClassThermocouple Vacuum Gauge Tube
BaseSpecial / none
Filament— V @ 17 mA
Construction
Primary TypeOther / special
EnvelopePyrex #774 Glass
SectionsSingle
Filament / Heater
Heater NotesNormal heater current is approximately 17.0 mA. All gauge tubes are individually calibrated and marked with the specific heater current required to provide 10 millivolts output.
Absolute Maximum Ratings
Cathode Current100 mA
Audio Performance
Key Features
- Thermal conductivity gauge
- Fast response
- Leak detection capability
- Pyrex glass construction
Application Notes
Used for measuring pressures in the range of .1 to 1000 microns. Suitable for all-glass vacuum systems. Can detect leaks by probing with acetone; acetone vapor causes a decrease in output E.M.F.
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