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Specialized - Ignitron ·IgnitronPowerSwitch

MPS1A

Marconi mercury-pool ignitron using an electrostatic ignition electrode for controlled high-current power switching.

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

Description

The Marconi MPS1A is a mercury-pool ignitron employing an electrostatic ignition electrode.

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

IgnitronPowerSwitch

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
6000 V
Rectifier peak forward current
500 A

Ignitron switching device; pulse and ignitor data retained in 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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

IgnitronPowerSwitch

Other

  • Peak forward voltage

    6000 V

  • Peak inverse voltage

    6000 V

  • Normal peak current

    500 A

  • Normal RMS current

    1 A

  • Permissible negative ignitor voltage

    1000 V

  • Normal duty factor

    0.000002