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Specialized - Thyratron ·Thyratron

GL5545

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
2.5 V / 21 A

Description

The 5545 is a triode type inert-gas filled thyratron for use in motor speed and welder control circuits. It is directly equivalent to the U.S.A. GL5545.

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
2.5 V
Nominal heater current
21 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 control grid

    0.8 pF

    Published direct interelectrode capacitance

  • Control grid to cathode

    45 pF

    Published direct interelectrode capacitance

  • Heater/filament nominal current

    21 A

    Nominal published value