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Specialized - Thyratron ·Thyratron

5727

Gas thyratron tetrode for relay operation, grid-controlled rectification, and pulse switching. Its control grid initiates rapid gas-discharge conduction.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
E7-1
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 600 mA

Description

Directly heated gas thyratron tetrode for relay operation, grid-controlled rectification, and pulse switching.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
E7-1
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

E7-1 - 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 0

Thyratron

X-ray radiationInterelectrode capacitances
Max plate voltage
650 V
Max cathode current
500 mA
Rectifier peak inverse voltage
1300 V
Rectifier forward voltage drop
8 V
Rectifier max heater-cathode voltage
100 V

Thyratron section. Forward peak anode voltage and peak cathode current promoted; inverse/pulse ratings preserved 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Application

  • Application

    Relay_GridControlledRectifier_PulseModulator text

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • Heater or filament voltage

    6.3 V

    Section1

  • Heater or filament current

    600 mA

    Section1

  • Peak forward voltage maximum

    650 V

    Thyratron

  • Peak inverse voltage maximum

    1300 V

    Thyratron

  • Peak anode current maximum

    500 mA

    Thyratron

  • Average anode current maximum

    100 mA

    Thyratron

  • Maximum grid voltage

    -100 V

    Thyratron

Characteristic

  • Filament heating time

    10 s

    Thyratron

  • Tube voltage drop

    8 V

    Thyratron

  • Ionization time

    0.5 µs

    Thyratron

  • Deionization time

    35 min

    Thyratron

Data set 03

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 0

Thyratron

CrossReference

  • Prototype / equivalent family

    2D21

Application

  • Application

    Relay / grid-controlled rectifier / pulse modulator

Other

  • Peak forward anode voltage

    650 V

    Pulse

  • Peak cathode current

    500 mA

    Pulse

  • Fault cathode current

    10 A

    Pulse

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • Peak Inverse Anode Voltage

    1300 V

    GridControlledRectifier

  • Average Cathode Current

    100 mA

    GridControlledRectifier

  • Fault Cathode Current

    10 A

    0.1Second

  • Pulse Peak Cathode Current

    10 A

    PulseModulator

Characteristic

  • Anode Voltage Drop

    8 V

Data set 05

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    600 mA

    Nominal

  • Maximum Plate Voltage

    650 V

  • Maximum Cathode Current

    100 mA

  • Peak Cathode Current

    500 mA

    Relay/controlled-rectifier service

  • MaximumInverseAnodeVoltage

    1300 V

Data set 06

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • Peak forward anode voltage

    650 V

  • Peak inverse anode voltage

    1300 V

  • Peak cathode/anode current

    500 mA

  • Average cathode/anode current

    100 mA

  • Fault or surge current

    10 A

    ShortDuration

  • Peak heater-cathode voltage heater negative

    100 V

  • Peak heater-cathode voltage heater positive

    25 V

  • Ambient temperature range

    -75 C minimum

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Pulse-modulator peak anode voltage

    500 V

    PulseModulator

  • Pulse-modulator peak cathode current

    10 A

    PulseModulator

  • Pulse-modulator current rate of change

    100 A/us

    PulseModulator

Characteristic

  • Ionization time

    0.5 us

    Approximate

  • Deionization time

    35 us

    Approximate

  • Anode voltage drop

    8 V

    Conducting

  • Minimum heating time

    20 s

    BeforeConduction

Construction

  • Gas fill

    Gas

Capacitance

  • Grid-to-anode capacitance

    0.026 pF

    Approximate

  • Grid-to-cathode capacitance

    2.4 pF

    Approximate

Data set 07

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • Peak forward anode voltage

    500 V

    PulseModulator

  • Peak inverse anode voltage

    100 V

    PulseModulator

  • Peak cathode current

    10 A

    PulseModulator

  • Average cathode current

    10 mA

    PulseModulator

  • Cathode heating time

    20 s

Capacitance

  • Grid No.1 to anode capacitance

    0.026 pF

  • Input capacitance

    2.4 pF

  • Output capacitance

    1.6 pF

Characteristic

  • Ionization time

    0.5 us