8045

High-power triode designed for pulse-modulator service, with manufacturer ratings centered on short-duration high-voltage, high-current pulses rather than continuous RF or audio operation. Its intended role is switching or modulating pulsed power in professional equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.6 V / 285 A

Description

Water-cooled thoriated-tungsten high-power triode for RF amplifier/oscillator, pulse, and hard-tube-modulator 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: 12.6 V
Nominal heater current: 285 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: 20
Max plate voltage: 18000 V
Max plate dissipation: 90000 W
Max cathode current: 12 A

Applicable promoted fields mapped semantically from the printed ratings; device-specific electrical limits and operating conditions are preserved densely in TUBE_SECTION_PARAMETER.

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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Grid-Plate Capacitance
85 pF
Grid-Filament Capacitance
85 pF
Plate-Filament Capacitance
6 pF
AF Maximum-Signal Plate Current
12 A
ClassB
AF Maximum Plate Input
175 kW
ClassB
Typical AF Plate Voltage
14000 V
ClassB;TwoTubes
Typical AF Output Power
210 kW
ClassB;TwoTubes
RF Class-B Maximum Plate Voltage
16000 V
ClassB
RF Class-B Maximum Plate Current
14 A
ClassB
Plate-Modulated Plate Voltage
12000 V
ClassC;Telephony
Class-C Telegraphy Plate Voltage Maximum
18000 V
ClassC