Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Other
Maximum Frequency
790 MHz
Application
Application
RFPower text
Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode
SRL458
Air-cooled transmitting tetrode designed for television and VHF transmitter final-stage RF power service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4.1 V / 130 A
Description
Air-cooled directly heated metal-ceramic transmitting tetrode for television transmitter final stages.
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
- 4.1 V
- Nominal heater current
- 130 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
Tetrode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.038 S
- Max plate voltage
- 5200 V
- Max screen voltage
- 800 V
- Max plate dissipation
- 10000 W
- Max screen dissipation
- 120 W
- Max grid dissipation
- 120 W
- Max cathode current
- 3.6 A
Published ratings and characteristics promoted where clearly stated.
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.