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Specialized - Cathode Ray ·CathodeRay

D3001

Five-inch Iatron direct-view storage CRT that writes, stores, erases, and displays gray-scale information. Its storage target provides persistent electronic images with tonal information.

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

Description

The ITT D3001 Iatron is a five-inch direct-view storage cathode-ray tube that writes, stores, erases, and displays gray-scale information.

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
-
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
10000 V

Storage CRT; multiple write/flood electrodes are preserved 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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Cathode preheating time

    30 s

  • Viewing-screen maximum voltage

    10000 V

  • Backing-electrode maximum voltage

    25 V

  • Collector maximum voltage

    250 V

  • Flood anode 4 maximum voltage

    150 V

  • Flood anode 3 maximum voltage

    150 V

  • Flood anode 2 maximum voltage

    150 V

  • Flood anode 1 maximum voltage

    480 V

  • Heater-cathode maximum voltage

    125 V

  • Write cathode typical voltage

    -750 V

  • Write grid 1 cutoff voltage

    -60 V

  • Write grid 3 focus voltage

    165 V

  • Anode 2 adjustment

    25 to 35 V

  • Anode 3 adjustment

    15 to 30 V

  • Write-grid cutoff adjustment

    -120 to -60 V

  • Write-grid focus adjustment

    105 to 210 V