Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Construction
Filling
Argon and mercury vapor
Application
Application
Grid-controlled rectifier, motor control, relay
Specialized - Thyratron ·Thyratron
323B
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B4B
- Base pins
- 5
- Nominal heater
- 2.5 V / 5 A
Description
The 323B is a directly heated three-electrode argon and mercury-vapor thyratron with negative-control characteristics, designed for grid-controlled rectifier, motor-control and relay applications; argon improves starting at low temperature.
Socket description
Medium 4-pin bayonet
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4B
- Base pins
- 5
- Nominal heater voltage
- 2.5 V
- Nominal heater current
- 5 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
Thyratron
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 1250 V
- Rectifier nominal output current
- 1500 A
- Rectifier peak forward current
- 6000 A
- Rectifier forward voltage drop
- 10 V
- Rectifier warm-up time
- 15 s
Published promoted fields populated from Maximum Ratings / Characteristics / Typical Operation headings.
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
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Characteristic
Anode-to-control-grid capacitance
7.8 pF
WholeTube
Recommended operating temperature range
40 to 80 °C
WholeTube
Other
Minimum cathode heating time
15 s
Characteristic
De-ionization time
360 µs
Anode120V AnodeCurrent1.5A Grid20V GridResistor10000ohm
De-ionization time
60 µs
Anode120V AnodeCurrent1.5A GridMinus500V GridResistor100000ohm
Initial anode voltage drop
10 V
Characteristic
End-of-life anode voltage drop
20 V
Characteristic
Peak forward anode voltage
1250 V
WholeTube
Peak reverse anode voltage
1250 V
WholeTube
Peak anode current
6 A
WholeTube
Average anode current
1.5 A
WholeTube
Fault current for 0.1 second maximum
120 A
WholeTube
Maximum operating frequency
420 cycles/s
WholeTube