Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
IgnitronPowerSwitch
Characteristic
ArcDrop
19 V
PlateCurrent=1100A
Other
AirFlowMinimum
600 ft3/min
ForcedAir
Specialized - Ignitron ·IgnitronPowerSwitch
8420
Forced-air-cooled coaxial mercury-pool ignitron designed specifically for railroad-locomotive electronic-contactor service and other high-current industrial switching applications.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- -
- Nominal heater
- -
Description
Forced-air-cooled coaxial ignitron for railroad locomotive electronic-contactor service.
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
- -
- Nominal heater voltage
- -
- Nominal heater current
- -
- 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
IgnitronPowerSwitch
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Ignitron contactor ratings retained in 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.