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7268

Direct-view storage tube with two writing guns for radar, transient studies, and data-storage displays. Multiple writing systems allow stored electronic information to be presented persistently.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: TWOTIER25
Base pins: -
Nominal heater: 6.3 V / 600 mA

Description

Direct-view storage tube with two writing guns for radar, transient studies and data-storage displays.

Socket description

Two-tier 25-contact Deci-Quindecimal base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: TWOTIER25
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: 11000 V

Direct-view storage electron-beam system with two writing guns.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Application

Application
Radar_TransientStorage_DataTransmission text

Characteristic

ScreenBrightness
2500 ft-lambert
ScreenVoltage 10 kV