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Specialized - Thyratron ·Thyratron

EN91

Inert-gas tetrode thyratron for relay and grid-controlled rectifier circuits, in the same functional family as the 2D21.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B7G
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

Inert-gas tetrode thyratron for relay and grid-controlled rectifier circuits; equivalent family to 2D21.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
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
Max plate voltage
1300 V
Max cathode current
600 mA

Gas-discharge device.

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

    6.3 V

  • HeaterOrFilamentCurrent

    600 mA

  • Anode Voltage Drop

    8 V

  • Anode To Grid Capacitance

    0.03 pF

  • GridToCathodeAndShieldCapacitance

    2.5 pF

Other

  • PeakInverseAnodeVoltageMaximum

    1300 V

  • PeakForwardAnodeVoltageMaximum

    650 V

  • PeakCathodeCurrentMaximum

    500 mA

  • Average Cathode Current Maximum

    100 mA

  • ControlGridNegativeVoltageMaximum

    100 V

    BeforeConduction

Data set 02

1971 Mullard Gas Filled Tubes

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Maximum peak anode voltage

    1.3 kV

  • Maximum average cathode current

    600 mA

  • Heater/filament voltage

    6.3 V

  • Heater/filament current

    600 mA