Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Cathode Ray ·CathodeRay

23GSP4

Large aluminized P4 monochrome television picture tube for high-voltage direct-view service, using electrostatic focusing and magnetic deflection with manufacturer-specified operating characteristics for type 23GSP4.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12D
Base pins
7
Nominal heater
6.9 V / 6.3 A

Description

Direct-view cathode-ray picture tube for television display service, using electrostatic focus and magnetic deflection. The supplied datasheet was used for heater data, electrode ratings, focus and deflection information, capacitances, optical data, screen characteristics, and applicable operating limits.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12D
Base pins
7
Nominal heater voltage
6.9 V
Nominal heater current
6.3 A
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 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

1971 RCA HB3 Binder 1 of 7

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • NO ION-TRAP MAGNET REQUIRED — published value 1

    1 mA

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

  • NO ION-TRAP MAGNET REQUIRED — published value 2

    10 mA

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

  • Grid No.i to al l other electrodes

    6 pF

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

  • External conductive coating to anode. 1700 min — 2500 max pF — published value 1

    1700 mA

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

  • External conductive coating to anode. 1700 min — 2500 max pF — published value 2

    2500 mA

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

  • Light transmission at center (Approx )

    42

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

  • Projected Area of Screen

    282

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

  • Grid-No.2 Voltage — published value 1

    200 V

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

  • Grid-No.2 Voltage — published value 2

    550 V

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

  • Heater Voltage — published value 1

    5 V

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

  • Heater Voltage — published value 2

    7 V

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

  • Heater Voltage — published value 3

    6.9 V

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

  • Combined AC & DC voltage

    200 V

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

  • Anode Voltage

    18000 V

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

  • Grid-No.4-Voltageb

    200 V

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

  • Grid-No.2 Voltage

    300 V

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

  • Cathode Voltage — published value 1

    28 V

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

  • Cathode Voltage — published value 2

    62 V

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

  • Grid-No. l Circuit Resistance — published value 1

    1 mA

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

  • Grid-No. l Circuit Resistance — published value 2

    5 mA

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

  • ill have a value anywhere between 0 and +400 volts with the comhined grid — published value 1

    0 V

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

  • ill have a value anywhere between 0 and +400 volts with the comhined grid — published value 2

    400 V

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

  • No.l of ce ge and vcdeo-sign 1 vol ca ge d))~usced to give n anode current

    1

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

  • MIN/MUM SCREEN

    21

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