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

Specialized - Cathode Ray ·CathodeRay

DG95

Philips/Mullard DG-series cathode-ray instrument tube for oscillographic and measurement display, with manufacturer-defined electrostatic beam focusing, deflection, screen, and accelerating characteristics for type DG95.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12A
Base pins
-
Nominal heater
4 V / 1 A

Description

The Philips DG95 is a high-vacuum post-acceleration oscillography crt with green.

Socket description

Duodecal 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12A
Base pins
-
Nominal heater voltage
4 V
Nominal heater current
1 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 plate voltage
5000 V

High-vacuum CRT with post-acceleration electrode, electrostatic focusing, and double electrostatic deflection. Screen variant: green.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Heater Voltage

    4 V

  • Heater Current

    1 A

  • Phosphor Variant

    green text

    Screen fluorescence and persistence

  • Post-Acceleration Electrode

    Present text

Data set 02

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Capacitance

  • Capacitances Cg

    8 pF

    Capacitances Cg = 8 pF CD2 = 10 pF

  • Capacitances Cg

    10 pF

    Capacitances Cg = 8 pF CD2 = 10 pF

Characteristic

  • Line width (Va

    1000 V

    Line width (Va3 = 1000 V)

  • Post-deflection acceleration present

    1

    Source explicitly describes post-deflection acceleration

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • D2' est & connecter

    3 a

    Published datasheet condition

  • Capacitances Cg

    8 pF

    Published datasheet condition

  • Capacitances Cg = 8 pF Cpo

    10 pF

    Published datasheet condition

  • Kapazitéten Opy

    95 PF

    Published datasheet condition

  • Kapazitéten Opy = 95 PF Cpo+

    10 pF

    Published datasheet condition

  • CD1'

    9.5 pF

    Published datasheet condition

  • CD1' = 9,5 pF CD1D1'

    1.1 pF

    Published datasheet condition

  • Cpaper = a

    4 PF

    Published datasheet condition

  • Line width (va3

    1000 V

    Published datasheet condition

  • Epaisseur de la ligne éVaZ

    1000 V

    Published datasheet condition

  • Epaisseur de la ligne éVaZ = 1000 V

    0.7 mm

    Published datasheet condition

  • Linienbreite Iy

    0.5 w

    Published datasheet condition

  • (Va3

    5000 V

    Published datasheet condition

  • EVaZ

    1000 V

    Published datasheet condition

  • EVaZ = 1000 V

    0.55 mm

    Published datasheet condition

  • Val

    1000 V

    Published datasheet condition

  • Val = 1000 V

    5000 V

    Published datasheet condition

  • Va2

    1000 V

    Published datasheet condition

  • Va2 = 1000 V

    1000 V

    Published datasheet condition

  • Val = 200

    400 V

    Published datasheet condition

  • Val = 200 - 400 V 230

    430 V

    Published datasheet condition

  • ~Vg = 0

    40 V

    Published datasheet condition

  • ~Vg = 0 - 40V O~

    40 V

    Published datasheet condition

  • N1 = 0,38 mn/V

    0.18 mm

    Published datasheet condition

  • N2

    0.32 mm

    Published datasheet condition

  • N2 = 0,32 mm/V

    0.15 mm

    Published datasheet condition

  • 1) Measured on a circle of

    50 mm

    Published datasheet condition

  • Mesuré 3 un cercle de

    50 mm

    Published datasheet condition

  • Gemessen an einem Kreis von

    50 ma

    Published datasheet condition

Other

  • Va3

    5000 V

    Published datasheet condition

  • Va3 = max. 5000 V 7D1D1'p

    350 V

    Published datasheet condition

  • Va2

    1200 V

    Published datasheet condition

  • Va2 = max. 1200 V vD2D2'p

    450 V

    Published datasheet condition

  • Val

    500 V

    Published datasheet condition

  • Val = max. 500 V Wp

    3 mW

    Published datasheet condition

  • Vg

    200 V

    Published datasheet condition