Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Sensor
Characteristic
HeaterOrFilamentVoltage
1.15 V
ElectronBeamCurrent
1 uA
MagneticFluxDensity
5000 gauss
Specialized - Sensor Tube ·Sensor
SY1301
Omegatron mass-spectrometer sensing tube for residual-gas analysis. Crossed electric and magnetic fields separate ions by mass-to-charge ratio for vacuum-system composition measurement.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater
- 1.15 V / -
Description
Omegatron mass-spectrometer sensing tube for residual-gas analysis, using crossed electric and magnetic fields to separate ions by mass-to-charge ratio.
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
- 1.15 V
- 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.
Ratings and characteristics promoted from the supplied Sylvania source where explicitly published.
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 02
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