Data set 01
1938 Raytheon
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Characteristics
Heater or filament voltage
6.3 V
Published nominal value
Heater or filament current
150 mA
Published nominal value
Specialized - Thyratron ·Thyratron
5643
Subminiature xenon-filled shield-grid thyratron for switching, counter, and grid-controlled rectifier service in compact electronic equipment.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B8D
- Base pins
- 8
- Nominal heater
- 6.3 V / 150 mA
Description
Subminiature xenon-filled shield-grid thyratron for switching, counter, and grid-controlled rectifier service.
Socket description
Subminiature 8-lead
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B8D
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 150 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
Thyratron
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 500 V
- Max cathode current
- 16 mA
- Rectifier peak inverse voltage
- 500 V
- Rectifier forward voltage drop
- 12.5 V
- Rectifier warm-up time
- 10 s
Published characteristics and ratings promoted where clearly recoverable from source.
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
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Characteristic
HeaterOrFilamentVoltage
6.3 V
HeaterOrFilamentCurrent
150 mA
Other
Peak Forward Anode Voltage
500 V
Peak Inverse Anode Voltage
500 V
Data set 03
1958 Compagnie General
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak Inverse Anode Voltage
500 V
Characteristic
Application
Grid-controlled rectifier / relay
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Heater voltage
6.3 V
Nominal
Heater current
150 mA
Nominal
Maximum cathode current
100 mA
Characteristic
Minimum cathode heating time
10 s
Capacitance
Anode-to-control-grid capacitance
0.03 pF
Data set 05
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak inverse anode voltage
500 V
Switching
Peak forward anode voltage
500 V
Switching
Peak cathode current
100 mA
Switching
Average cathode current
25 mA
Switching
Surge cathode current
1 A
0.1Second
Characteristic
Anode voltage drop
12.5 V
Critical grid current
0.5 uA
Ebb=350Vrms
Minimum cathode heating time
10 s
De-ionization time
15 us
Grid=-100V
De-ionization time
25 us
LowNegativeGridVoltage
Capacitance
Anode-to-control-grid capacitance
0.084 pF
Control-grid-to-cathode capacitance
1.33 pF
ShieldGridIncluded
Data set 06
196X Bendix
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Heater Voltage
6.3 V
Published datasheet value; see source context.
Plate Voltage
8 V
Published datasheet value; see source context.
Cathode Current
16 mA
Published datasheet value; see source context.
Characteristic
Heater Current
150 mA
Published datasheet value; see source context.
Plate Current
16 mA
Published datasheet value; see source context.