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Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Cathode Ray ·CathodeRay

24ALP4

Large P4 monochrome television picture tube in the 24-inch class, designed for high-voltage direct-view service with manufacturer-specified focusing, magnetic deflection, and beam-control characteristics for type 24ALP4.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
8HR
Socket code
B8D
Base pins
7
Nominal heater
6.3 V / 460 mA

Description

The 24ALP4 is a 24-inch rectangular glass picture tube with electrostatic focus, magnetic deflection, a 110-degree deflection angle, aluminized screen, and non-ion-trap gun.

Socket description

Subminiature 8-lead

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
8HR
Socket code
B8D
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
460 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

8HR - 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 0

Cathode Ray

X-ray radiationInterelectrode capacitances
Max plate voltage
20000 V

Picture-tube anode maximum 20 kV; source warns X-ray shielding may be necessary above 16 kV.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 0

Cathode Ray

Other

  • Grid Number 2 Voltage Maximum

    500 V

  • Typical Anode Voltage

    17000 V

    TypicalOperation

Characteristic

  • Deflection Angle Diagonal

    110 deg

    Approximate