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CV5028

Mercury-vapor grid-controlled thyratron for industrial controlled rectification and power-control switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: 4
Nominal heater: 5 V / 4.5 A

Description

Ref.: 3V/390A Hot-Cathode Mercury- 3V/390B Vapour Thyratrons 57 (CV5027) Codes: 3V/390B (CV5028) < Type 57 is a three-electrode mercury-vapour thyratron developed mainly for use in Industrial Control applications. It is equivalent to the U.S.A. type FG-57. The 3V/390B is an electrically identical thyratron on a British 4-pin base.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 4
Nominal heater voltage: 5 V
Nominal heater current: 4.5 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

Thyratron

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Values transcribed from the approved datasheet; additional published data retained as parameters.

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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Anode to grid
3.5 pF
Published direct interelectrode capacitance
Grid to cathode
8.5 pF
Published direct interelectrode capacitance
Heater/filament nominal current
4.5 A
Nominal published value