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Specialized - Photo Tube ·ImageConverterIntensifier

F4704

Ruggedized 18 mm microchannel-plate image intensifier with trifocal fiber-optic input, S-25 photocathode, and integral high-voltage power supply. Designed for compact high-gain imaging under demanding environmental conditions.

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

Description

Ruggedized 18 mm microchannel-plate image intensifier with trifocal fiberoptic input, S-25 photocathode, and integral high-voltage power supply.

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
2.7 V
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 Window Configuration

    Trifocal fiberoptic

  • Photocathode

    S-25

  • Phosphor

    P-20 aluminized

  • Luminous Gain Maximum

    15000 ratio

  • Equivalent Background Input

    2e-11 lumen/cm2

  • Magnification

    1.004 ratio

  • Resolution Maximum

    28 lp/mm

  • On Pulse Voltage Minimum

    100 V

    PulseOperation

  • On Pulse Voltage Maximum

    300 V

    PulseOperation

  • Pulse Repetition Rate Standard

    1000 Hz

    PulseOperation

Other

  • Luminous Gain Minimum

    5070 ratio

  • Resolution Minimum

    22 lp/mm

  • Cutoff Voltage

    -30 V

    PulseOperation

Capacitance

  • Input Capacitance

    30 pF

    PulseOperation