Specialized - Thyratron ·Thyratron
Large ceramic 33-megawatt hydrogen thyratron for extreme pulse-power service. Fast controlled gas discharge switches exceptionally high pulse energy.
The ITT/Kuthe 7390 is a large ceramic 33-megawatt hydrogen thyratron for very-high-power pulse service.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Thyratron pulse ratings promoted where semantically compatible; trigger, delay, jitter, reservoir and current-rate data retained as parameters.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Gas
Hydrogen
Anode Voltage Drop Maximum
250 V
PeakForwardAnodeVoltageMaximum
33000 V
PeakInverseAnodeVoltageMaximum
33000 V
Average Cathode Current Maximum
4 A
RMSCathodeCurrentMaximum
72 A
DCAnodeVoltageMinimum
3500 V
CurrentRateOfRiseMaximum
10000 A/us
CathodeHeatingTimeMinimum
5 min
SwitchedPulsePower
33 MW
RadarModulator
Data set 02
Published operating points and test conditions from this source.
Heater current
22 A to 35 A
Heater voltage nominal
6.3 V
Minimum heating time
5 min
Maximum peak forward anode voltage
33000 V
Maximum peak inverse anode voltage
33000 V
Maximum peak anode current
2000 A
Maximum average anode current
4 A
Maximum RMS anode current
72 A
Maximum anode current rate of rise
10000 A/us
Maximum peak inverse trigger voltage
650 V
Maximum anode delay time
1 us
Maximum anode delay-time drift
0.25 us
Initial maximum time jitter
0.01 us