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Specialized - Photo Tube ·ImageConverterIntensifier

F4736

Electrostatically focused high-resolution magnifying image intensifier with a 25 mm fiber-optic input and 125 mm output window. It enlarges and intensifies weak optical images for direct viewing or recording.

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

Description

Electrostatically focused high-resolution magnifying image intensifier with 25 mm fiberoptic input and 125 mm output window.

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.

Applicable promoted fields mapped from printed headings; specialized microwave/imaging/electrode data retained densely in TUBE_SECTION_PARAMETER.

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

ImageConverterIntensifier

Characteristic

  • Input Fiber Useful Diameter

    25 mm

  • Output Window Useful Diameter

    125 mm

  • Photocathode

    S-20

  • Image Section Configuration

    Triode

  • Phosphor

    Modified P-20

Other

  • Focusing Voltage Nominal

    400 V

  • Anode Voltage

    20000 V

    CathodeGrounded

  • Brightness Gain Minimum

    4 fL/fc

    2870K light

  • Brightness Gain Typical

    6 fL/fc

    2870K light

  • Center Limiting Resolution Minimum

    110 lp/mm

  • Center Limiting Resolution Typical

    120 lp/mm

  • Off-Axis Limiting Resolution Minimum

    100 lp/mm

    12mm off-axis

  • Contrast Minimum

    85 percent

  • Contrast Typical

    88 percent