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Specialized - Thyratron ·Thyratron

GL502A

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
B4B
Base pins
4
Nominal heater
6.3 V / 600 mA

Description

The GL-502-A is an inert-gas-filled double-grid thyratron with negative-control characteristics, high sensitivity, compact size, and operation over a wide ambient-temperature range.

Socket description

Medium 4-pin bayonet

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B4B
Base pins
4
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 0

Thyratron

X-ray radiationInterelectrode capacitances
Max plate voltage
650 V
Max cathode current
100 mA
Rectifier peak inverse voltage
1300 V

Double-grid inert-gas thyratron; forward/inverse peak anode ratings and average anode current promoted.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 0

Thyratron

Other

  • Instantaneous Anode Current

    500 mA

  • Surge Anode Current

    10 A

    DesignOnly

  • Control-Grid Voltage Before Conduction

    -200 V

Characteristic

  • Peak Voltage Drop

    11 V

    Typical