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6988

Gas-filled grid-controlled rectifier thyratron documented for controlled power conversion, with published filament and rectifier operating ratings.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

The 6988 is a gas-filled grid-controlled rectifier/thyratron documented in the approved datasheet, with published filament and rectifier operating ratings.

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: -
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

Rectifier peak inverse voltage: 1250 V
Rectifier nominal output current: 6.4 A
Rectifier peak forward current: 77 A

Published rectifier/control ratings promoted where applicable.

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

1942 Electrons Inc

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Peak forward voltage
750 V
Published datasheet value
Peak inverse voltage
1250 V
Published maximum instantaneous rating
Continuous DC anode/output current
6.4 A
D-c meter value continuous
Continuously recurring peak current
77 A
Oscillograph peak

Characteristics

Heating time
60 s
Published datasheet value