Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
RFPower text
Power - Triode (over 1000V 100W) ·Triode
VRS303
Radiation-cooled directly heated power triode for low-frequency amplifiers and modulation stages. Approximately 1 kW plate dissipation and multi-kilovolt capability provide substantial audio-frequency and transmitter-modulator power.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 17.5 V / 12 A
Description
A radiation-cooled directly heated power triode for low-frequency amplifiers and modulation stages, rated for 1 kW maximum anode dissipation.
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
- 17.5 V
- Nominal heater current
- 12 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
- Plate resistance
- 1100 Ω
- Transconductance
- 0.008 S
- Amplification factor
- 9.09
- Max plate voltage
- 3000 V
- Max plate dissipation
- 1000 W
- Max cathode current
- 600 mA
Radiation-cooled power triode; 6 kV peak-anode-voltage limit retained as parameter.
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.