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Specialized - Thyratron ·Thyratron

GT4A

Gas-filled grid-controlled thyratron for controlled rectification, relay, industrial control, oscillator, or pulse-switching service.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 1.2 A

Description

Gas triode/thyratron for controlled switching and rectifier service.

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
4 V
Nominal heater current
1.2 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.

Published Mullard ratings, characteristics, operating conditions, and capacitances extracted from supplied datasheet.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • HeaterOrFilamentVoltage

    4 V

  • HeaterOrFilamentCurrent

    1.2 A

  • Anode Cathode Capacitance

    3.1 pF

  • Grid Cathode Capacitance

    3.4 pF

  • Anode Grid Capacitance

    2.7 pF

  • MinimumGridResistance

    1000 ohm/V

  • Maximum Grid Resistance

    0.5 Mohm/V

  • GasVoltageDrop

    17 V

  • ControlRatio

    20

Other

  • PeakVoltageBetweenAnyElectrodesMaximum

    350 V

  • PeakAnodeVoltageMaximum

    300 V

  • PeakAnodeCurrentMaximum

    300 mA

  • AverageAnodeCurrentMaximum

    3 mA

  • HeaterCathodeVoltageMaximum

    100 V