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Voltage - Triode (single) ·Triode

GMI47A

Russian very-high-current liquid-cooled pulse-switching triode for high-power pulse modulators.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
22 V / 141 A

Description

The GMI47A is a very-high-current liquid-cooled pulse switching triode.

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
22 V
Nominal heater current
141 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

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
70000 V
Max cathode current
850 A

Promoted from published pulse switching limits; non-promoted pulse quantities 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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater current

    132 A to 150 A

Other

  • Maximum anode voltage

    70000 V

  • Peak anode current

    850 A

  • Peak cathode current

    850 A

  • Negative cutoff/bias voltage

    100 V

  • Peak excess grid voltage

    6000 V

  • Maximum pulse duration

    100 us