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Specialized - Cathode Ray ·CathodeRay

4490

Oscillograph cathode-ray tube for waveform and instrumentation display with post-deflection acceleration up to several kilovolts. The accelerated beam provides a bright trace while retaining electrostatic precision for measurement applications.

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

Description

Oscillograph cathode-ray tube for waveform and instrumentation display. The supplied datasheet was used for heater data, electrode ratings, focus and deflection information, capacitances, screen/phosphor characteristics, and applicable operating limits.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
1
Nominal heater voltage
6.9 V
Nominal heater current
-
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.

CRT-specific electrode voltages, deflection factors, capacitances, focus/cutoff data, and other published electrical values are stored as section parameters because the promoted section columns are primarily conventional valve fields.

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

  • 7-IN DIAMETER

    7

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Neater Current at 6.3 V — published value 1

    6.3

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Neater Current at 6.3 V — published value 2

    0.6

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No.~ 'o all other electrodes

    6 pF

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 1 -Heater

    1

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 2 -Cathode

    2

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 3 -Grid No.1

    3

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 5 -Grid No.3 — published value 1

    5

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 5 -Grid No.3 — published value 2

    1

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 9 -Anode (Grids No.2&No.4)

    9

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Pin 14 -Heater

    14

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Post-Deflection Accelerator Voltage

    6000 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Anode Voltage

    3000 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No.3 (Focusing-Electrode) Voltage — published value 1

    750 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No.3 (Focusing-Electrode) Voltage — published value 2

    1200 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No. l Voltage — published value 1

    -58 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No. l Voltage — published value 2

    -93 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • 2.00±.06DA, to DJ2, the spot will be

    2

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

Other

  • Post-Deflection Accelerator Voltage

    8000 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Anode Voltage

    4000 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Grid-No.3 (Focusing-Electrode) Voltage

    2000 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Heater Voltage

    6.9 V

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Heater negative with respect to cathode

    125 mA

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Heater positive with respect to cathode

    125 mA

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

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

    1 mA

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

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

    5 mA

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.

  • Resistance in any Deflection Electrode Circuita

    5 mA

    Published CRT datasheet value; where a source row has several numbers they represent its separate limits or operating conditions.