SRV355

Evaporatively cooled high-power transmitting triode with coaxial electrode connections for RF, audio, oscillator, and modulator service. Rated for approximately 50 kW plate dissipation and 12 kV plate voltage for major transmitter finals and industrial generators.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.5 V / 180 A

Description

Evaporatively cooled transmitting triode with coaxial electrode feedthroughs for RF, audio and oscillator circuits, chiefly transmitter finals, industrial generators and modulator 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: 12.5 V
Nominal heater current: 180 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: 0.057 S
Amplification factor: 77
Max plate voltage: 12000 V
Max plate dissipation: 50000 W
Max grid dissipation: 1500 W
Max cathode current: 15 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
12.5 V
Nominal
HeaterCurrentNominal
180 A
Nominal
Maximum Plate Voltage
12000 V
Maximum Plate Dissipation
50000 W
MaximumGridDissipation
1500 W
Maximum Cathode Current
15 A
Maximum Frequency
30 MHz
RFOutputPower
50000 W
ClassB anode modulation; 1 MHz

Characteristic

Transconductance
57000 µS
Typical
Amplification Factor
77
Typical