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Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Cathode Ray ·CathodeRay

24QP4

Twenty-four-inch direct-view monochrome television picture tube with a P4 screen and magnetic deflection. Manufacturer documentation provides the high-voltage operating, focusing, optical, and capacitance characteristics required for receiver display service.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
12N
Socket code
B12D
Base pins
5
Nominal heater
6.3 V / 600 mA

Description

Direct-view cathode-ray picture tube intended for television display service. The supplied Tung-Sol datasheet provides electrical ratings, operating conditions, capacitances, optical characteristics, focusing and deflection information.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12N
Socket code
B12D
Base pins
5
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12N - 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
0 V
Max screen voltage
500 V

CRT electrode, focus, deflection and optical data preserved in parameter rows.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Maximum Anode Voltage

    18000 V

  • Typical Anode Voltage

    16000 V

  • Maximum Grid2 Voltage

    500 V

  • Typical Grid2 Voltage

    300 V

Characteristic

  • FocusingMethod

    Magnetic

  • DeflectingMethod

    Magnetic

  • DiagonalDeflectionAngleApproximate

    90 degree

  • PhosphorNumber

    4

  • FluorescentColor

    White

Data set 02

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • MAGNETIC FOCUS b DEFLECTION — value 1

    21718

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAGNETIC FOCUS b DEFLECTION — value 2

    167

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • R ECTAMGULAR GLASS CONSTRUCTION

    10

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • DIRECT INTERELECTRODE CAPACITANCES (APPRO%.)

    1

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • GRID #1 TO ALL GTHER ELECTRODES — value 1

    1

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • GRID #1 TO ALL GTHER ELECTRODES — value 2

    6

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • PHOSPHOR

    4

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • FACEPLATE LIGHT TRANSMISSION — value 1

    11 percent

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • FACEPLATE LIGHT TRANSMISSION — value 2

    2 percent

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • HEATER VOLTAGE

    6.3 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • HEATER CURRENT

    600 mA

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • HEATER POSITIVE WITH RESPECT TO CATHODE — value 1

    1 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • HEATER POSITIVE WITH RESPECT TO CATHODE — value 2

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • ABECAU SE THE RATING OF THIS TUBE PERMITS ANOOE VOLTAGES AS NIGH AS 19.BNV~ SNI EI DING Of N—RAY — value 1

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • ABECAU SE THE RATING OF THIS TUBE PERMITS ANOOE VOLTAGES AS NIGH AS 19.BNV~ SNI EI DING Of N—RAY — value 2

    19 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • ABECAU SE THE RATING OF THIS TUBE PERMITS ANOOE VOLTAGES AS NIGH AS 19.BNV~ SNI EI DING Of N—RAY — value 3

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • RADIATION FROM THE TUBE MAY BE MECESSAq T. THIS PRECAUTION SM OULD BE OBSERVED wNEN THE ANODE IS — value 1

    0

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • RADIATION FROM THE TUBE MAY BE MECESSAq T. THIS PRECAUTION SM OULD BE OBSERVED wNEN THE ANODE IS — value 2

    0

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • RADIATION FROM THE TUBE MAY BE MECESSAq T. THIS PRECAUTION SM OULD BE OBSERVED wNEN THE ANODE IS — value 3

    1

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • DC ANODE VOLTAGE

    16000 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #2 VOLTAGE — value 1

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #2 VOLTAGE — value 2

    2 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #2 VOLTAGE — value 3

    300 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #i VOLTAGE S — value 1

    1 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #i VOLTAGE S — value 2

    2 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC GRID #i VOLTAGE S — value 3

    72 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC FOCUSING COIL CURRENT[ — value 1

    0 mA

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC FOCUSING COIL CURRENT[ — value 2

    100 mA

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • OC FOCUSING COIL CURRENT[ — value 3

    20 mA

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • VISUAL E%71X[71 ON OF UNOEFLECTED FOCUSED SPOT. — value 1

    71

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • VISUAL E%71X[71 ON OF UNOEFLECTED FOCUSED SPOT. — value 2

    710

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • VISUAL E%71X[71 ON OF UNOEFLECTED FOCUSED SPOT. — value 3

    0

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • DFOR — value 1

    9 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • DFOR — value 2

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • SIGNAL VOLTAGE ADJU 5TE0 TO PRODU LE A NIGNLI GNT BRIGNTME 55 OF 20 F00T LNM BER TS ON A 21 7/e" er — value 1

    1 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • SIGNAL VOLTAGE ADJU 5TE0 TO PRODU LE A NIGNLI GNT BRIGNTME 55 OF 20 F00T LNM BER TS ON A 21 7/e" er — value 2

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • SIGNAL VOLTAGE ADJU 5TE0 TO PRODU LE A NIGNLI GNT BRIGNTME 55 OF 20 F00T LNM BER TS ON A 21 7/e" er — value 3

    217 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • 16 1/B" PICTI'gE SIZE. — value 1

    0

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • 16 1/B" PICTI'gE SIZE. — value 2

    0

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • 16 1/B" PICTI'gE SIZE. — value 3

    11

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

Other

  • MAXIMUM DC ANODE VOLTAGE A — value 1

    1 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM DC ANODE VOLTAGE A — value 2

    0 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM DC GRID #2 VOLTAGE — value 1

    2 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM DC GRID #2 VOLTAGE — value 2

    500 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM GRID #1 VOLTAGE

    1 V

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM GRID #i CIRCUIT RESISTANCE — value 1

    1 Mohm

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.

  • MAXIMUM GRID #i CIRCUIT RESISTANCE — value 2

    5 Mohm

    Published CRT datasheet value; multiple values on one source row represent separate conditions, limits, or nominal values.