Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
RFPower text
Other
Maximum Frequency
20 MHz
Plate Current
300 mA
ClassA;Plate 1.3 kV;Grid -115 V
Power - Triode (over 1000V 100W) ·Triode
VRS331
Directly heated thoriated-tungsten power triode for amplifier service through the HF range. Approximately 450 W plate dissipation and multi-kilovolt capability provide substantial transmitting and power-amplifier operation.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 12.6 V / 5.9 A
Description
A directly heated thoriated-tungsten power triode with a 2.5 kV maximum anode voltage and operation up to 20 MHz.
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
- 12.6 V
- Nominal heater current
- 5.9 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
- 0.014 S
- Amplification factor
- 10
- Max plate voltage
- 2500 V
- Max plate dissipation
- 450 W
- Max cathode current
- 500 mA
Directly heated thoriated-tungsten power triode.
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.