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Specialized - Cathode Ray ·CathodeRay

DG73

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 DG73.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12A
Base pins
-
Nominal heater
6.3 V / 400 mA

Description

Oscillography cathode-ray tube with electrostatic focusing and double electrostatic deflection; green, long persistence.

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
6.3 V
Nominal heater current
400 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
Max plate voltage
1000 V

Electrostatic focusing/deflection CRT section; electrical/screen/deflection data retained 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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Maximum Plate Voltage

    800 V

  • Anode 2 Voltage

    800 V

  • Anode 1 Voltage Minimum

    200 V

  • Anode 1 Voltage Maximum

    300 V

Characteristic

  • Focusing Method

    Electrostatic

  • Deflection Method

    Double electrostatic

  • Screen Variant

    green, long persistence

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Chauffage: indirect par C.A. ou C.C. Ve

    6.3 V

    Published datasheet condition

  • Heizung: indirekt durch Wechsel~ If

    400 mA

    Published datasheet condition

  • Capac.:‘gtznces Cg

    9 pF

    Published datasheet condition

  • Published value

    4.4 pF

    Published datasheet condition

  • cp2

    5 pF

    Published datasheet condition

  • cp2!

    5.4 PF

    Published datasheet condition

  • CDiD1!

    46 PF

    Published datasheet condition

  • CD2D2*

    0.6 pF

    Published datasheet condition

  • ine width . Va2

    800 V

    Published datasheet condition

  • Va2

    800 V

    Published datasheet condition

  • vail = 200

    300 V

    Published datasheet condition

  • ~Vg = 0=~

    507 V

    Published datasheet condition

  • N ="

    10.26 mm

    Published datasheet condition

  • N2

    0.16 mm

    Published datasheet condition

  • vez = 28T "

    800 v

    Published datasheet condition

  • 77 measured on & circle of

    50 mm

    Published datasheet condition

  • mesuré & un cercle de

    50 mm

    Published datasheet condition

  • gemessen zn einem Kreis von

    50 mm

    Published datasheet condition

  • Published value

    1 A

    Published datasheet condition

  • Published value

    40 V

    Published datasheet condition

  • 1C.1C

    1949 A

    Published datasheet condition

  • Published value

    3 A

    Published datasheet condition

Other

  • Vail

    400 V

    Published datasheet condition

  • Vg

    100 V

    Published datasheet condition

  • VD1D1'p

    450 V

    Published datasheet condition

  • VD2D2'p= max. T

    50 V

    Published datasheet condition