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Specialized - Cathode Ray ·CathodeRay

FW202

Five-inch barrier-grid storage cathode-ray tube designed for MTI, binary and random-access storage, image storage, and scan conversion. Its storage target retains electronically written information for subsequent readout.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

Five-inch barrier-grid storage cathode-ray tube for MTI, binary storage, random access, image storage, and scan conversion.

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
6.3 V
Nominal heater current
600 mA
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

Cathode Ray

X-ray radiationInterelectrode capacitances
Max plate voltage
1600 V

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

Cathode Ray

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

  • Barrier Grid Voltage

    0 V

  • Backplate Voltage

    50 V

  • Beam Current

    1-5 uA

  • Storage Function

    Background cancellation / random access

Other

  • Maximum Viewing/High-Voltage Electrode Potential

    1600 V

  • Maximum G1 Voltage

    1600 V

Capacitance

  • Collector Capacitance

    17 pF