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22CP7

Large cathode-ray display tube using a P7 screen with blue-white long-persistence response, magnetic focusing and magnetic deflection, documented by Rauland with a 6.3 V, 0.6 A heater.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: B14A
Base pins: 5
Nominal heater: 6.3 V / 600 mA

Description

Twenty-two-inch magnetic-focus, magnetic-deflection round metal-envelope cathode-ray tube for radar applications with a long-persistence screen.

Socket description

Large readout/Nixie 14-contact base, 44.5 mm pin circle

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B14A
Base pins: 5
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: 16000 V

CRT accelerator/final-anode maximum mapped to MaxPlateVoltage.

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

1963 Rauland

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Heater voltage
6.3 V
Heater current
600 mA
Maximum heater-cathode voltage
180 V
Heater positive to cathode

Characteristic

Focusing method
Magnetic
Deflection method
Magnetic

Capacitance

Cathode to all other electrodes capacitance
5 pF
Grid 1 to all other electrodes capacitance
6 pF