SRS457

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 10 A

Description

SRS457 is a radiation-cooled transmitting tetrode intended for communications, industrial RF generators, audio-frequency amplification. The source publishes heater data, static characteristics, operating examples, limiting ratings, capacitances, and mechanical or cooling requirements as applicable.

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: 6.3 V
Nominal heater current: 10 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: 0.0055 S
Max plate voltage: 5000 V
Max screen voltage: 700 V
Max plate dissipation: 500 W
Max screen dissipation: 65 W
Max grid dissipation: 25 W
Max cathode current: 600 mA

Promoted ratings/characteristics are source-published values; additional published values and operating examples are preserved in the parameter table.

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

Tetrode

Other

HeaterVoltageNominal
10 V
Nominal
HeaterCurrentNominal
10 A
Nominal
Maximum Plate Voltage
5000 V
Maximum Screen Voltage
700 V
Maximum Plate Dissipation
500 W
Maximum Screen Dissipation
65 W
MaximumGridDissipation
25 W
Maximum Cathode Current
700 mA
Maximum Frequency
110 MHz

Characteristic

Transconductance
5500 µS
Typical