SRW353

Water-cooled VHF transmitting triode with concentric grid connection for grounded-grid television, VHF, and industrial RF service. Rated for approximately 15 kW plate dissipation and 8 kV plate voltage for substantial high-frequency transmitter power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 5.3 V / 150 A

Description

Water-cooled VHF transmitting triode with concentric grid connection for grounded-grid operation in VHF and television transmitters and industrial RF generators.

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: 5.3 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: 0.04 S
Amplification factor: 43.5
Max plate voltage: 8000 V
Max plate dissipation: 15000 W
Max grid dissipation: 400 W
Max cathode current: 5 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.

Data set 01

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
5.3 V
Nominal
HeaterCurrentNominal
150 A
Nominal
Maximum Plate Voltage
8000 V
Maximum Plate Dissipation
15000 W
MaximumGridDissipation
400 W
Maximum Cathode Current
5 A
Maximum Frequency
220 MHz
RFOutputPower
20000 W
ClassC self-excited; 400 kHz

Characteristic

Transconductance
40000 µS
Typical
Amplification Factor
43.5
Typical