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CK1366

Three-inch printer-type cathode-ray tube with a single-row electrostatic printing element. Raytheon designed it for high-speed electronic printing equipment rather than conventional visual display.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: DUODECAL7
Base pins: -
Nominal heater: 6.3 V / 600 mA

Description

3-inch printer-type cathode-ray tube with single-row electrostatic printing element for high-speed label-printing equipment.

Socket description

Duodecal 7-contact CRT base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: DUODECAL7
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: 25000 V

Published ratings and characteristics promoted where clearly stated.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

Heater or filament voltage
6.3 V
Published nominal value
Heater or filament current
600 mA
Published nominal value
Printing wires per inch
250 1/in
single-row

Other

Collector operating voltage
20000 V
Published