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6777

Compact reservoir hydrogen thyratron designed for pulse network-discharge service, providing fast high-current switching with reservoir-supported operating stability.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: UX4
Base pins: -
Nominal heater: 6.3 V / 2.45 A

Description

The ITT/Kuthe 6777 is a compact reservoir hydrogen thyratron for pulse network-discharge service.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: UX4
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 2.45 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: 8000 V
Max cathode current: 35 A

Thyratron pulse ratings promoted where semantically compatible; trigger, delay, jitter, reservoir and current-rate data retained as 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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

Heater current
2.2 A to 2.7 A
Heater voltage nominal
6.3 V

Other

Minimum heating time
3 min
Maximum peak forward anode voltage
8000 V
Maximum peak inverse anode voltage
8000 V
Maximum peak anode current
35 A
Maximum average anode current
45 mA
Maximum RMS anode current
1.25 A
Maximum anode current rate of rise
1200 A/us
Maximum peak inverse trigger voltage
200 V
Maximum anode delay time
0.6 us
Maximum anode delay-time drift
0.15 us
Initial maximum time jitter
0.03 us