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Specialized - Gauge Tube ·Gauge

F9117

Hot-filament ionization gauge tube designed for low and very-low-pressure measurement, providing comparatively high published ion-gauge sensitivity.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
5.7 V / 1.35 A

Description

Ionization gauge tube for measuring low or very low gas pressures.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
5.7 V
Nominal heater current
1.35 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Gauge

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed where applicable.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Gauge

Characteristics

  • Heater or filament voltage

    5.7 V

    Published nominal or stated operating value

  • Heater or filament current

    1.35 A

    Published nominal or stated operating value

  • Pressure measurement range

    0.000001 to 0.001 Torr

    Published useful range

  • Ion-gauge sensitivity

    1200 uA/Pa

    Dry-air calibration; representative published condition