Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Thyratron
Other
Peak Cathode Current
1500 A
Crowbar
ForwardAnodeVoltage
25 kV
Crowbar
Characteristic
Cathode Heating Time
3 min
Specialized - Thyratron ·Thyratron
7559
Zero-bias hydrogen thyratron for extremely fast high-current crowbar protection of high-voltage electronic equipment.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- 8
- Nominal heater
- 6.3 V / 30 A
Description
Zero-bias hydrogen thyratron for high-current crowbar protective circuits, capable of extremely fast protective switching.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 30 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
- 1500 A
Published ratings and characteristics mapped semantically; identical repeated sections compressed.
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.