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Specialized - Cathode Ray ·CathodeRay

24AEP4

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 24AEP4.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
12L
Socket code
B12D
Base pins
6
Nominal heater
6.3 V / 10 A

Description

Sylvania 24AEP4 is a direct-view television picture cathode-ray tube using magnetic deflection and electrostatic focusing. The supplied data publishes a 6.3 V heater, high-voltage anode and grid ratings, interelectrode capacitances, and X-ray precautions.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12L
Socket code
B12D
Base pins
6
Nominal heater voltage
6.3 V
Nominal heater current
10 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12L - 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
22000 V
Max screen voltage
550 V

CRT-specific ratings, operating conditions, capacitances, focus/deflection, cutoff, optical, and screen data are retained in section 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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

Other

  • Maximum Anode Voltage

    22000 V

  • Grid2 Voltage

    550 V

Data set 02

1971 RCA HB3 Binder 1 of 7

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • LOW-YOLTAGE ELECTROSTATIC FOCUS

    90 mA

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Heater Current at 6.3 volts — published value 1

    6.3 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Heater Current at 6.3 volts — published value 2

    600 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Heater Current at 6.3 volts — published value 3

    10 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Grid No.l to all other electrodes

    6

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Light transmission (Approx )

    75

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Projected Area of Screen

    332

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Grid-No.4 Voltage for focus — published value 1

    -50 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Grid-No.4 Voltage for focus — published value 2

    350 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • extinction of focused raster — published value 1

    -28 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • extinction of focused raster — published value 2

    -72 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

Other

  • External conductive coating to ultor

    2500 mA

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • ULTOR VOLTAGE

    22000 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • GRID-No.2 VOLTAGE

    550 V

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.

  • Grid-No.l-Circuit Resistance

    1.5 mA

    Published CRT datasheet value; multiple numbers on one source row represent separate limits or operating conditions.