Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Construction
Filling
Gas
Specialized - Thyratron ·Tetrode
20A3
Gas tetrode thyratron for relay service. Controlled discharge provides heater-driven electronic switching and relay action.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 600 mA
Description
Thyratron gas tetrode for gas-relay service.
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
- 6.3 V
- Nominal heater current
- 600 mA
- 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
Tetrode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 650 V
- Max cathode current
- 100 mA
- Rectifier peak inverse voltage
- 1300 V
- Rectifier forward voltage drop
- 8 V
REDO promoted-field audit
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
1961 AEI Industrial Valves
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Characteristics
Maximum forward anode voltage
650 V
Maximum peak inverse anode voltage
1300 V
Maximum peak cathode current
500 mA
Maximum shield-grid voltage
-100 V
Maximum control-grid voltage
-100 V
Minimum heater warmup time
10 s
Data set 03
1961 Associated Electrical Industries
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Characteristics
Maximum forward anode voltage
650 V
Maximum peak inverse anode voltage
1300 V
Maximum peak cathode current
500 mA