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Specialized - Cathode Ray ·CathodeRay

DG1078

Philips/Mullard DG-series cathode-ray instrument tube intended for oscillographic and measurement display, with manufacturer-defined electrostatic focusing, deflection, screen, and accelerating characteristics for type DG1078.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 300 mA

Description

Philips DG10-78 is a flat-face measuring cathode-ray tube with electrostatic focusing, symmetrical deflection and high-voltage post-deflection acceleration up to 8 kV.

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
300 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.

Published electrical ratings and characteristics promoted where the locked schema provides a matching field; specialized CRT and operating data retained as 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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Screen fluorescence

    Green

    Published datasheet value

  • Persistence

    Medium

    Published datasheet value

  • Useful screen diameter

    90 mm

    Published datasheet value

  • Vertical deflection sensitivity

    0.57 to 1.02 mm/V

    Published datasheet value

  • Horizontal deflection sensitivity

    0.18 to 0.33 mm/V

    Published datasheet value

  • Maximum linearity deviation

    2 %

    Published datasheet value

  • Pattern distortion

    - to 2 %

    Published datasheet value

  • Grid No.1 capacitance

    3.4 pF

    Published datasheet value

  • Post-deflection helix resistance

    50 to - MΩ

    Published datasheet value

Other

  • Post-accelerator voltage range

    1500 to 8000 V

    Published datasheet value

  • Isolation-screen voltage maximum

    - to 3000 V

    Published datasheet value

  • Accelerator voltage range

    1000 to 3000 V

    Published datasheet value

  • Focusing voltage

    400 to 700 V

    Published datasheet value

  • Negative grid No.1 cut-off voltage

    45 to 75 V

    Published datasheet value