Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
Heating Time
30 s
Typical
Other
MaximumInstantaneousAnodeCurrent
5 A
Maximum Surge Anode Current
50 A
Rectifier - Half Wave ·Rectifier
GL872A
Mercury-vapor half-wave rectifier for high-voltage industrial power conversion, using low arc voltage to provide efficient current handling in substantial DC supplies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4B
- Base pins
- -
- Nominal heater
- 5 V / 7.5 A
Description
Half-wave mercury-vapor rectifier tube for high-voltage rectifier service.
Socket description
Medium 4-pin bayonet
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4B
- Base pins
- -
- Nominal heater voltage
- 5 V
- Nominal heater current
- 7.5 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
Rectifier
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 10000 V
- Rectifier nominal output current
- 1.25 A
- Rectifier peak forward current
- 5 A
- Rectifier forward voltage drop
- 10 V
- Rectifier warm-up time
- 30 s
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.