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Specialized - Photo Tube ·ImageConverterIntensifier

TH9479

Electrostatic or cascaded image-intensifier tube designed for night viewing or specialized ultraviolet/low-light imaging.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

The Thomson-CSF TH9479 is a 40 mm input electrostatic tetrode image intensifier with electronic zoom and fast shutter.

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
-
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

ImageConverterIntensifier

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Electron-optical image-intensifier structure; specialized photocathode/focus/screen values 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

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

ImageConverterIntensifier

Other

  • Maximum photocathode-to-screen/anode voltage

    18 kV

  • Photocathode-to-g1 voltage

    -3 to 1 kV

  • Photocathode-to-g2 voltage

    3 to 16 kV

  • Maximum photocathode illumination

    1 lux

  • Normal-mode magnification

    0.62 x

  • Zoom-mode magnification

    1.28 x

  • Normal central resolution

    45 lp/mm

  • Zoom central resolution

    71 lp/mm

Characteristic

  • Input field diameter

    40 mm

  • Output image diameter

    25 mm