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Specialized - Cathode Ray ·CathodeRay

D14120GH

Philips or Telefunken D-series cathode-ray instrument tube designed for oscillographic and measurement display, with manufacturer-defined electrostatic beam control, deflection, screen, and accelerating characteristics for type D14120GH.

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

Description

14 cm rectangular instrument CRT. The supplied Philips sheet was read for heater, accelerator, focusing, deflection, capacitance, limiting-value and screen data.

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.

Cathode-ray tube section. Accelerator, deflection, focus and screen-specific electrical data are retained as parameters rather than forced into unrelated plate/screen fields.

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

  • Heater voltage

    6.3 V

  • Heater current

    300 mA

  • Horizontal deflection coefficient

    15.5 V/cm

  • Vertical deflection coefficient

    4.2 V/cm

Other

  • Final/accelerator voltage

    10000 V

  • Focusing electrode voltage

    250 to 350 V

  • First accelerator voltage

    1500 V

  • Grid No.1 circuit resistance maximum

    1 Mohm

  • Screen dissipation maximum

    8 mW/cm2

Capacitance

  • X]

    6.5 pF

  • x7

    6.5 pF

  • y1

    5 pF

  • y2

    5 pF

  • X]

    2.2 pF

  • yitoy2

    1.7 pF

  • Control

    5.5 pF

  • Cathode

    4.5 pF