Data set 01
1999 Philips E-Z
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Saturation current
25 A
Anode-filament capacitance
4.5 pF
Grid-filament capacitance
0 pF
Anode-grid capacitance
25 pF
Power - Triode (over 1000V 100W) ·Triode
TA1235
Water-cooled three-phase-filament transmitting triode for high-frequency power amplification. Approximately 18 kW plate dissipation and 15 kV capability support high-current operation in major fixed transmitters.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 49 V / 150 A
Description
TA1235 is a water-cooled three-phase-filament transmitting triode for hf amplification. The supplied Philips datasheet was read for filament data, limiting ratings, characteristic constants, operating classes, cooling requirements, and interelectrode capacitances where published.
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
- 49 V
- Nominal heater current
- 150 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
- Transconductance
- 0.015 S
- Amplification factor
- 25
- Max plate voltage
- 15000 V
- Max plate dissipation
- 18000 W
Water-cooled three-phase-filament transmitting triode for HF amplification
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.