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8461

Immersion-cooled high-power triode for hard-tube pulse modulators and series-regulator service. Tens-of-kilovolts capability and very high dissipation make it a specialized pulsed switching and high-voltage control device.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 15 V / 200 A

Description

Immersion-cooled high-power triode for hard-tube pulse-modulator and series-regulator 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: 15 V
Nominal heater current: 200 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: 25
Max plate voltage: 80000 V
Max plate dissipation: 30000 W
Max cathode current: 750 A

High-power pulse-modulator triode; 30 kW oil-cooled plate dissipation and explicit X-ray warning.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

PulsePowerOutput
40 MW
Plate 75 kV; Pulse
PulseLengthMaximum
1000 us
DutyFactorMaximum
0.01 ratio

Application

Application
HardTubePulseModulator_SeriesRegulator text