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FG105

Double-grid mercury-vapor thyratron for high-impedance grid-drive applications. Its heavy heater supports substantial industrial controlled current.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 5 V / 10 A

Description

Double-grid mercury-vapor thyratron for high-impedance grid-drive applications.

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: 5 V
Nominal heater current: 10 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

No fixed ratings are recorded for this section.

Promoted fields mapped semantically from printed ratings/characteristics headings. Fixed promoted fields are largely inapplicable to this special-purpose device; additional published data is retained in TUBE_SECTION_PARAMETER where text recovery permits.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Heating time, typical..... ... .. 5 5
5 minutes
Heating time, typical..... ... .. 5 5 5 minutes
Ionization time, approx.......... 10 10
10 microseconds
Ionization time, approx.......... 10 10 10 microseconds TUBE
Deionization time, approx........ 1000 1000
1000 microseconds
Deionization time, approx........ 1000 1000 1000 microseconds
Maximum time of averaging current. 15 5
15 seconds
Maximum time of averaging current. 15 5 15 seconds
Temperature limits, condensed mercury. .. .. .. .. .. +40 to +80 +30 to +95 +25 to +
50 degC
Temperature limits, condensed mercury. .. .. .. .. .. +40 to +80 +30 to +95 +25 to +50 centigrade
Recommended temperature, condensed mercury. . ... .. ...... ... 40 40
40 degC
Recommended temperature, condensed mercury. . ... .. ...... ... 40 40 40 centigrade