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Power - Triode ·Triode

889

Water-cooled high-power triode for RF power amplification, oscillator operation, and Class B modulation in substantial transmitting equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
11 V / 125 A

Description

The Amperex 889 is a high-power triode intended for radio-frequency power amplification and related modulator or oscillator service.

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
11 V
Nominal heater current
125 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
Amplification factor
21
Max plate voltage
8500 V
Max plate dissipation
5000 W

Water-cooled RF power oscillator/amplifier and Class B modulator triode.

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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater/Filament Voltage

    11 V

    Published datasheet value

  • Heater/Filament Current

    125 A

    Published datasheet value

  • Maximum Plate/Anode Voltage

    8500 V

    Published datasheet value

  • Maximum Plate/Anode Dissipation

    5000 W

    Published datasheet value

Characteristic

  • Amplification Factor

    21

    Published datasheet value