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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

GU43B

Continuous-duty Russian RF power tetrode designed for dependable kilowatt-class professional transmitter service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / -

Description

Power tetrode for continuous RF amplification. Extracted from the English electrical and limit-operating tables of the bilingual datasheet.

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
12.6 V
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

Tetrode

X-ray radiationInterelectrode capacitances
Max plate voltage
3300 V
Max screen voltage
500 V
Max plate dissipation
1000 W
Max screen dissipation
28 W
Max grid dissipation
5 W
Max cathode current
3.2 A

English text primary; Russian used only to verify/repair OCR.

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

Tetrode

Characteristic

  • Transconductance

    40000 to 50000 uS

  • Cathode Heating Time

    180 s

    maximum

Capacitance

  • Input Capacitance

    80 to 100 pF

  • Output Capacitance

    10 to 18 pF

  • Transfer Capacitance

    0.1 pF

    max

Other

  • Cathode Current DC

    1 A

  • Cathode Current Peak

    3.2 A

  • Minimum Output Power

    1.6 kW

  • Output Power after 1000 h

    1.3 kW

    minimum