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Other (weirdo tubes) ·Other

TH9303

Rugged three-stage electrostatically focused image intensifier with automatic brightness control, fiber-optic windows, and integral high-voltage supply for military night vision.

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

Description

The TH9303 is a rugged three-stage electrostatically focused image-intensifier tube with automatic brightness control, fiber-optic input and output windows, and an integral high-voltage supply for demanding military night-vision service.

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

Other

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published ratings/characteristics audited; detailed numeric data retained in parameter table.

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

Other

Other

  • ® EXTENDED RED PHOTOCATHODE, ¢

    256

    ® EXTENDED RED PHOTOCATHODE, ¢ 256 mm

  • ® VERY HIGH LUMINANCE GAIN [1]

    25

    ® VERY HIGH LUMINANCE GAIN : 25 000 cd/m?/lux (80 000 fL/fc)

  • ® VERY HIGH LUMINANCE GAIN [2]

    0

    ® VERY HIGH LUMINANCE GAIN : 25 000 cd/m?/lux (80 000 fL/fc)

  • ® VERY HIGH LUMINANCE GAIN [3]

    80

    ® VERY HIGH LUMINANCE GAIN : 25 000 cd/m?/lux (80 000 fL/fc)

  • ® VERY HIGH LUMINANCE GAIN [4]

    0

    ® VERY HIGH LUMINANCE GAIN : 25 000 cd/m?/lux (80 000 fL/fc)

  • The oscillator requires a dc voltage of [1]

    6.25 V

    The oscillator requires a dc voltage of 6.25V (Note 1).

  • The oscillator requires a dc voltage of [2]

    1 V

    The oscillator requires a dc voltage of 6.25V (Note 1).

  • The photocathode is of S2 [1]

    0

    The photocathode is of S20 ER type (extended red sensitivity) and the yellow-green fluorescent P20

  • The photocathode is of S2 [2]

    0

    The photocathode is of S20 ER type (extended red sensitivity) and the yellow-green fluorescent P20

  • Battery dc input voltage (for [1]

    6 V

    Battery dc input voltage (for 6. 26 V nominal} (Note 1) . . . ... .. ................ max. 6.5 A

  • Battery dc input voltage (for [2]

    26 V

    Battery dc input voltage (for 6. 26 V nominal} (Note 1) . . . ... .. ................ max. 6.5 A

  • Battery dc input voltage (for [3]

    1 V

    Battery dc input voltage (for 6. 26 V nominal} (Note 1) . . . ... .. ................ max. 6.5 A

  • Battery dc input voltage (for [4]

    6.5 V

    Battery dc input voltage (for 6. 26 V nominal} (Note 1) . . . ... .. ................ max. 6.5 A

  • Photocathode illumination . . . . ... . . . ... . .. . . . e max

    100

    Photocathode illumination . . . . ... . . . ... . .. . . . e max. 100 lux

  • OPerating teMPEratUre . . . . . . oo et e e et e et e e e e e e e e e e max. +

    52

    OPerating teMPEratUre . . . . . . oo et e e et e et e e e e e e e e e e max. +52 °C

  • Battery dc input voltage (Note [1]

    1 V

    Battery dc input voltage (Note 1) . . . . .. . i e i e e e e e s e e e e 6. 25 \'

  • Battery dc input voltage (Note [2]

    6 V

    Battery dc input voltage (Note 1) . . . . .. . i e i e e e e e s e e e e 6. 25 \'

  • Battery dc input voltage (Note [3]

    25 V

    Battery dc input voltage (Note 1) . . . . .. . i e i e e e e e s e e e e 6. 25 \'

  • Battery current (NOte [1]

    2 A

    Battery current (NOte 2) . . . . . . .ot i i e e e e e e 30 mA

  • Battery current (NOte [2]

    30 A

    Battery current (NOte 2) . . . . . . .ot i i e e e e e e 30 mA

  • Photocathode voltage. . . . . .. . ... .. . . i e e e e

    0 V

    Photocathode voltage. . . . . .. . ... .. . . i e e e e 0 \')

  • Color temperature of inCident light SOUFCE . . . . . o o v v o et e e e e e e e e s

    2854

    Color temperature of inCident light SOUFCE . . . . . o o v v o et e e e e e e e e s 2854 °K

  • Photocathode sensitivity (Note

    3

    Photocathode sensitivity (Note 3)

  • Screen lUMINANCEe . . . . . ittt e e e e

    500

    Screen lUMINANCEe . . . . . ittt e e e e - - 500 cd/m?

  • Luminance uniformity (Note [1]

    12

    Luminance uniformity (Note 12) . . . .. ... ... ...... — - 4

  • Luminance uniformity (Note [2]

    4

    Luminance uniformity (Note 12) . . . .. ... ... ...... — - 4

  • The tube is subjected to a [1]

    75

    The tube is subjected to a 75 g peak half-sine-wave shock of 6 *2 ms duration. Six xhock pulses are applied in

  • The tube is subjected to a [2]

    6

    The tube is subjected to a 75 g peak half-sine-wave shock of 6 *2 ms duration. Six xhock pulses are applied in

  • The tube is subjected to a [3]

    2

    The tube is subjected to a 75 g peak half-sine-wave shock of 6 *2 ms duration. Six xhock pulses are applied in

  • The tube is vertically mounted with the photocathode end up and is subjected to sine wave vibrations of

    1.3

    The tube is vertically mounted with the photocathode end up and is subjected to sine wave vibrations of 1.30 mm

  • amplitude for a vibration cycle having a duration of [1]

    1

    amplitude for a vibration cycle having a duration of 1 minute during which time the frequency is varied from 10 to

  • amplitude for a vibration cycle having a duration of [2]

    10

    amplitude for a vibration cycle having a duration of 1 minute during which time the frequency is varied from 10 to

  • The tube is subjected to a temperature cycle within the + [1]

    52

    The tube is subjected to a temperature cycle within the + 52 °C to —54 °C range and is held at.these

  • The tube is subjected to a temperature cycle within the + [2]

    -54

    The tube is subjected to a temperature cycle within the + 52 °C to —54 °C range and is held at.these

  • Published value [1]

    1 V

    1 - Onrequest, the tube can be factory-adjusted for use with batteries producing a nominal voltage of 6. 75 V.

  • Published value [2]

    6 V

    1 - Onrequest, the tube can be factory-adjusted for use with batteries producing a nominal voltage of 6. 75 V.

  • Published value [3]

    75 V

    1 - Onrequest, the tube can be factory-adjusted for use with batteries producing a nominal voltage of 6. 75 V.

  • Published value [1]

    2 A

    2 - This current is constant between 10‘4 and 100 lux,

  • Published value [2]

    10 A

    2 - This current is constant between 10‘4 and 100 lux,

  • Published value [3]

    4 A

    2 - This current is constant between 10‘4 and 100 lux,

  • Published value [4]

    100 A

    2 - This current is constant between 10‘4 and 100 lux,

  • Published value [1]

    3

    3 - The photocathode sensitivity is measured on a surface of 3 cm2 with a flux of 0. 01 lumen,

  • Published value [2]

    3

    3 - The photocathode sensitivity is measured on a surface of 3 cm2 with a flux of 0. 01 lumen,

  • Published value [3]

    0

    3 - The photocathode sensitivity is measured on a surface of 3 cm2 with a flux of 0. 01 lumen,

  • Published value [4]

    1

    3 - The photocathode sensitivity is measured on a surface of 3 cm2 with a flux of 0. 01 lumen,

  • At [1]

    800

    At 800 nm and 850 nm, the radiant sensitivity is measured with the incident light being filtered before falling on the photocathode.

  • At [2]

    850

    At 800 nm and 850 nm, the radiant sensitivity is measured with the incident light being filtered before falling on the photocathode.

  • Published value [1]

    4

    4 - The conversion factor or luminance gain is measured at 10'4 lux incident illumination for a photocathode surface of 3 cm2.

  • Published value [2]

    10

    4 - The conversion factor or luminance gain is measured at 10'4 lux incident illumination for a photocathode surface of 3 cm2.

  • Published value [3]

    4

    4 - The conversion factor or luminance gain is measured at 10'4 lux incident illumination for a photocathode surface of 3 cm2.

  • Published value [4]

    3

    4 - The conversion factor or luminance gain is measured at 10'4 lux incident illumination for a photocathode surface of 3 cm2.

  • Published value

    6

    6 - The resolution, both horizontal and vertical, is determined with a test pattern consisting of alternate black and white lines of

  • Published value [1]

    7

    7 - Peripheral resolution is measured at a distance of 10 mm from the optical axis of the tube.

  • Published value [2]

    10

    7 - Peripheral resolution is measured at a distance of 10 mm from the optical axis of the tube.

  • corresponding points on the photocathode. The points on the photocathode are separated by a distance of

    2

    corresponding points on the photocathode. The points on the photocathode are separated by a distance of 2 mm centered on the

  • Published value [1]

    9

    9 . The peripheral magnification Mp is measured as is Mc, except that the distance between two points of the photocathode is 20 mm.

  • Published value [2]

    20

    9 . The peripheral magnification Mp is measured as is Mc, except that the distance between two points of the photocathode is 20 mm.

  • Published value [1]

    11

    11 - A spot of 0. 1 mm is produced at the center of the photocathode. The center of the image on the screen will fall within a circle

  • Published value [2]

    0

    11 - A spot of 0. 1 mm is produced at the center of the photocathode. The center of the image on the screen will fall within a circle

  • Published value [3]

    1

    11 - A spot of 0. 1 mm is produced at the center of the photocathode. The center of the image on the screen will fall within a circle

  • Published value [1]

    12

    12 - Luminance uniformity is defined as the ratio of the maximum and minimum screen luminances over a 20-mm diameter concentric

  • Published value [2]

    20

    12 - Luminance uniformity is defined as the ratio of the maximum and minimum screen luminances over a 20-mm diameter concentric

  • Figure [1]

    1

    Figure 1 - S20 ER photocathode spectral response.

  • Figure [2]

    0

    Figure 1 - S20 ER photocathode spectral response.

  • Screen luminance {cd.m7

    2

    Screen luminance {cd.m72)

  • Figure

    4

    Figure 4 - Typical screen luminance as a function of photocathode illumination.

  • — & [1]

    430

    -— & 43,0-42, 8—» Photocathode

  • — & [2]

    -42

    -— & 43,0-42, 8—» Photocathode

  • — & [3]

    8

    -— & 43,0-42, 8—» Photocathode