Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
PlatePowerOutput
15 kW
ClassB;AudioFrequency;TwoTubes
Power - Triode (over 1000V 100W) ·Triode
GL889A
High-power General Electric transmitting triode with approximately 5 kW plate dissipation and 8.5 kV capability. Published Class B audio data also supports large transmitter-modulator service in addition to RF power applications.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 11 V / 120 A
Description
Three-electrode water-cooled power tube for radio-frequency amplification, oscillation, and Class B modulation.
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
- 11 V
- Nominal heater current
- 120 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
Triode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 8500 V
- Max plate dissipation
- 5000 W
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.