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Power - Triode ·Triode

GI38B

Russian RF/pulse power triode; maximum anode voltage 10000 V.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 69 A

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
6.3 V
Nominal heater current
69 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 0

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
10000 V

3 kW CW / 45 kW pulse; gm 0.035–0.045 A/V; filament 63–75 A; 200 MHz max.

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

2026 Russian Power

Published operating points and test conditions from this source.

SECTION 0

Triode

Other

  • Heater/filament voltage

    6.3 V

    Nominal heater/filament voltage

  • Heater/filament current

    69 A

    Nominal heater/filament current

  • Maximum plate voltage

    10000 V

    Maximum anode voltage; continuous rating unless pulse qualification specified

Characteristic

  • Center/operating frequency

    200 MHz

    Maximum operating frequency stated by manufacturer; not a typical center frequency