Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak Anode Voltage Forward
25 kV
Peak Cathode Current
500 A
PulseService
PulsePower
6.25 MW
RadarModulator
Specialized - Thyratron ·Thyratron
5949
Hydrogen-filled zero-bias pulse thyratron for high-power radar modulators. Fast gas discharge provides high-current, high-voltage pulse switching.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 18.5 A
Description
The 5949 is a three-electrode hydrogen-filled zero-bias thyratron intended for high-power, high-voltage radar modulator service, with an internal hydrogen reservoir and pulse capability around 6.25 MW.
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
- 18.5 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
- Max plate voltage
- 25000 V
- Max cathode current
- 500 A
Thyratron pulse ratings promoted where semantically compatible; trigger, delay, jitter, reservoir and current-rate data retained as parameters.
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
1962 ITT
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Characteristic
Heater current
15 A to 22 A
Heater voltage nominal
6.3 V
Other
Minimum heating time
15 min
Maximum peak forward anode voltage
25000 V
Maximum peak inverse anode voltage
25000 V
Maximum peak anode current
500 A
Maximum average anode current
500 mA
Maximum RMS anode current
15.8 A
Maximum anode current rate of rise
2500 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
Data set 03
1966 Tung Sol Electronic Tubes 4 of 4
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak forward anode voltage
25 kV
PulseService
Peak inverse anode voltage
25 kV
PulseService
Peak cathode current
500 A
PulseService
Average cathode current
500 mA
PulseService
RMS cathode current
16 A
PulseService
Peak grid voltage
1500 V
PulseService
Current rate of rise
250 A/us
PulseService
Anode delay time
1 us
PulseService
Characteristic
Heater current bogey
18.5 A
WholeTube
Cathode heating time minimum
15 min
WholeTube
Hydrogen reservoir present
TRUE
WholeTube
Pulse power capability
6.25 MW
RadarModulator
Data set 04
1982 Toshiba
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak Anode Current
500 A
Average Anode Current
500 mA
Minimum DC Supply Voltage
5000 V
Maximum Rate of Rise of Anode Current
2500 A/us
Pulse Repetition Rate
2000 pps
Pulse Duration
6 us
Data set 05
1999 Philips 0-D
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak anode current
500 A
Maximum
Average anode current
500 mA
Maximum
Grid peak voltage
1000 V
Maximum
Current rise rate
2500 A/us
Maximum
Anode time jitter
0.01 us
Maximum