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Specialized - Sensor Tube ·Sensor

SY1301A

Calibrated SY1301 Omegatron mass-spectrometer tube for quantitative residual-gas analysis. A tungsten emitter and crossed electric and magnetic fields permit measurement of individual gas partial pressures.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
8
Nominal heater
-

Description

Calibrated version of the SY1301 Omegatron mass-spectrometer sensing tube for residual-gas analysis.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
8
Nominal heater voltage
-
Nominal heater current
-
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

Sensor

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Omegatron mass-spectrometer analyzer tube with tungsten filament emitter. Calibrated version; otherwise identical to SY1301.

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

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Sensor

Other

  • Maximum envelope bake-out temperature

    450 degC

  • Applied RF frequency

    169 to 3720 kHz

  • Applied RF amplitude

    1.7 to 3 V

  • Focus electrode voltage

    -70 V

  • Trapping voltage

    -2 to -0.5 V

  • Electron collector voltage

    22.5 V

  • Magnetic flux density

    5000 gauss

  • Electron beam current

    1 uA

  • Emitter voltage range approximately

    1.05 to 1.25 V ac

  • Ion collector current

    0.000000000001 mA to 0.0000001 mA