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7298

Very-high-current thyratron for industrial controlled-power service. Its massive directly heated cathode supports substantial gas-discharge switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 2.5 V / 21 A

Description

Quick-heating inert-gas-filled grid-controlled thyratron for industrial control circuits.

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: 2.5 V
Nominal heater current: 21 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

Thyratron

X-ray radiationInterelectrode capacitances

Max plate voltage: 1500 V
Max cathode current: 80 A

Published ratings and characteristics promoted where clearly applicable; additional source values retained as section parameters.

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

Thyratron

Characteristics

Heater or filament voltage
2.5 V
Published nominal/representative value
Heater or filament current
21 A
Published nominal/representative value
Typical arc drop
16 V
Published approximate value
Ionization time
10 µs
Published approximate value