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

Specialized - Cathode Ray ·CathodeRay

D7191GH

Seven-centimeter flat-faced monoaccelerator instrument CRT with D7-190-family deflection performance and a low-consumption 6.3 V, 95 mA heater, intended for compact oscilloscopes and monitors.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
14-pin all glass
Socket code
-
Base pins
14
Nominal heater
6.3 V / 95 mA

Description

Philips D7191GH is a 7 cm flat-faced monoaccelerator instrument cathode-ray tube equivalent in deflection performance to the D7-190 family but using a low-consumption 6.3 V, 95 mA heater.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
14-pin all glass
Socket code
-
Base pins
14
Nominal heater voltage
6.3 V
Nominal heater current
95 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

14-pin all glass - 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
2200 V
Rectifier max heater-cathode voltage
100 V

Published ratings and characteristics promoted where a locked-schema field is semantically applicable; additional values retained as 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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Accelerator voltage typical

    1000 V

    Published datasheet value

  • Accelerator voltage maximum

    - to 2200 V

    Published datasheet value

  • Accelerator voltage minimum

    900 to - V

    Published datasheet value

  • Focusing electrode voltage typical

    100 to 180 V

    Published datasheet value

  • Focusing electrode voltage maximum

    - to 2200 V

    Published datasheet value

  • Deflection linearity deviation maximum

    - to 1 %

    Published datasheet value

  • Control grid circuit resistance maximum

    - to 1 MΩ

    Published datasheet value

  • Control grid drive average maximum

    - to 20 V

    Published datasheet value

  • Screen dissipation maximum

    - to 3 mW/cm²

    Published datasheet value

  • Cathode-to-heater voltage positive maximum

    - to 100 V

    Published datasheet value

  • Cathode-to-heater voltage negative maximum

    - to 15 V

    Published datasheet value

Characteristics

  • Horizontal deflection coefficient

    29 V/cm

    Published datasheet value

  • Horizontal deflection coefficient maximum

    - to 31 V/cm

    Published datasheet value

  • Vertical deflection coefficient

    11.5 V/cm

    Published datasheet value

  • Vertical deflection coefficient maximum

    - to 12.6 V/cm

    Published datasheet value

  • Useful scan horizontal minimum

    60 to - mm

    Published datasheet value

  • Useful scan vertical minimum

    50 to - mm

    Published datasheet value

  • Line width

    0.28 mm

    Published datasheet value

  • X1 to all except X2 capacitance

    4 pF

    Published datasheet value

  • X2 to all except X1 capacitance

    4 pF

    Published datasheet value

  • Y1 to all except Y2 capacitance

    3.5 pF

    Published datasheet value

  • Y2 to all except Y1 capacitance

    3 pF

    Published datasheet value

  • X1-X2 capacitance

    1.6 pF

    Published datasheet value

  • Y1-Y2 capacitance

    1.1 pF

    Published datasheet value

  • Control grid capacitance

    5.5 pF

    Published datasheet value

  • Cathode capacitance

    2.3 pF

    Published datasheet value