Data set 01
1956 Western Electric Tubes
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Characteristics
Gas filling
Argon
Other
Maximum peak anode current
600 mA
Maximum average anode current
100 mA
Specialized - Thyratron ·Thyratron
338A
Western Electric argon-filled heater-cathode special-purpose diode; available manufacturer documentation does not establish a grid-controlled thyratron function.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- UX4
- Base pins
- 5
- Nominal heater
- 10 V / 500 mA
Description
Argon-filled special-purpose heater-cathode diode.
Socket description
Medium-shell UX 4-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- UX4
- Base pins
- 5
- Nominal heater voltage
- 10 V
- Nominal heater current
- 500 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 cathode current
- 100 mA
- Rectifier peak inverse voltage
- 325 V
- Rectifier peak forward current
- 600 mA
- Rectifier forward voltage drop
- 15 V
- Rectifier max heater-cathode voltage
- 50 V
- Rectifier warm-up time
- 60 s
Thyratron ratings mapped from published anode/grid and current limits.
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
2026 Western Electric 300s
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Maximum instantaneous grid current
10 mA
Characteristic
Normal deionization time
1000 us