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Specialized - Cathode Ray ·CathodeRay

DG736

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 DG736.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12A
Base pins
-
Nominal heater
6.3 V / 300 mA

Description

The Philips DG736 is a high-sensitivity oscilloscope crt with green, medium 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
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.

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

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

  • Phosphor Variant

    green, medium persistence text

    Screen fluorescence and persistence

Data set 02

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Heater voltage yç

    6.3 V

    Heater voltage yç = 6.3 V

  • Heater current If

    300 mA

    Heater current If = 0.3 A

  • Grid No

    5.7 pF

    Grid No. 1 to all other electrodes Cg1 = 5.7 pF

  • Cathode to all other electrodes CE

    3.3 pF

    Cathode to all other electrodes CE = 3.3 pF

  • LINE WIDTH measured on a circle of

    50 mm

    LINE WIDTH measured on a circle of 50 mm diameter

  • Beam current Ij

    0.5 uA

    Beam current Ij = 0.5 µA

  • Line width

    0.4 mm

    Line width = 0.4 mm

  • Negative grid No

    1 V

    Negative grid No.1 voltage for

  • Grid No

    1 V

    Grid No.1 voltage

  • cathode Vkf

    180 V

    cathode Vkf 180 V

  • Negative grid No

    1 V

    Negative grid No.1 voltage per kV of

  • focused spot -Vg

    27 to 53 V

    focused spot -Vg1 27-53 V V82.44

Other

  • Deflection factor

    24.5 to 30 V

    Deflection factor 4x plates Mx = 24.5-30.0 V/cm