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Specialized - Switching Tube ·RelayControlSwitch

GR43

Cold-cathode relay tube for stable relay and timing control. Gas-discharge conduction provides repeatable heaterless switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

Cold-cathode relay tube with molybdenum cathode, starter input and keep-alive electrode for stable relay and timing control.

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
-
Nominal heater current
-
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

RelayControlSwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

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

1962 Cerberus

Published operating points and test conditions from this source.

SECTION 1

RelayControlSwitch

Characteristics

  • Anode breakdown voltage minimum

    275 V

  • Starter breakdown voltage

    110 to 125 V

    StarterPositive

  • Keep-alive breakdown voltage maximum

    220 V

  • Maintaining voltage A-K

    103 to 110 V

    2mA

  • Cathode current mean

    1 to 5 mA

  • Starter current for direct control

    0 to 5 mA

  • Starter current for capacitance control

    0.0001 to 5 mA

  • Control capacitance

    470 to 1000 pF

    UA>=150V

Other

  • Anode supply voltage

    150 to 250 V