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Specialized - Cathode Ray ·CathodeRay

19FJP4

Wide-angle aluminized P4 monochrome television picture tube using electrostatic focusing and magnetic deflection, designed for high-voltage direct-view service with a large approximately 19-inch screen.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 450 mA

Description

The 19FJP4 is a 19-inch television picture tube; supplied JEDEC registration states it is identical to 19EHP4 except for 0.45 A heater current.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
450 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

No fixed ratings are recorded for this section.

Television CRT electron-gun/display section.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    450 mA

  • Heater Warm-up Time

    11 s

  • Focusing Method

    Electrostatic text

  • Deflection Method

    Magnetic text

  • Horizontal Deflection Angle

    102 deg

  • Vertical Deflection Angle

    85 deg

  • Diagonal Deflection Angle

    114 deg

  • Cathode-to-All Capacitance

    5 pF

    Approximate

  • Grid1-to-All Capacitance

    6 pF

    Approximate

  • External Coating-to-Anode Capacitance Minimum

    1000 pF

  • External Coating-to-Anode Capacitance Maximum

    1500 pF

  • Phosphor

    P4 Aluminized text

  • Fluorescence

    White text

  • Light Transmittance

    49 percent

    ScreenCenter

  • Electrical Characteristics Reference

    19EHP4 text

    IdenticalExceptHeaterCurrent