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Specialized - Cathode Ray ·CathodeRay

D18120GH

Philips instrument cathode-ray tube for oscilloscope service, using electrostatic beam control and documented focusing, acceleration, deflection, capacitance, screen, and operating characteristics for precision waveform display.

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

Description

Instrument cathode-ray tube with electrostatic beam control/deflection data, screen characteristics, heater ratings, and operating/limiting information documented in the supplied datasheet.

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.

Primary physical section.

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

Other

  • Heater voltage

    6.3 V

    Nominal

  • Heater current

    300 mA

    Nominal

Characteristic

  • Final accelerator voltage Vg7

    0 kV

    Published datasheet value

  • Display area

    120 mm

    Published datasheet value

  • horizontal My

    15.5 V/em

    Published datasheet value

  • vertical My

    45 V/cm

    Published datasheet value

  • Useful screen area min

    120 mm

    Published datasheet value

  • horizontal min

    120 mm

    Published datasheet value

  • vertical min

    100 mm

    Published datasheet value

  • horizontal direction +

    8 mm

    Published datasheet value

  • vertical direction +

    6 mm

    Published datasheet value

  • Heater voltage Vs

    63 V

    Published datasheet value

  • Heater current I

    300 mA

    Published datasheet value

  • square of

    10 mm

    Published datasheet value

  • me?nt

    3 v

    Published datasheet value

  • Overall length (socket included) max

    454 mm

    Published datasheet value

  • Face dimensions max

    146 mm

    Published datasheet value

  • Base

    14 a

    Published datasheet value

  • Final accelerator contact connector type

    55563 A

    Published datasheet value

  • x4 to all other elements except xo Cx1(x2

    6.5 pF

    Published datasheet value

  • x2 to all other elements except x4 Cx2(x1

    6.5 pF

    Published datasheet value

  • Y1 to all other elements except y2 Cy1{y2

    5 pF

    Published datasheet value

  • y2 to all other elements except y Cy2(y1

    5 pF

    Published datasheet value

  • X1 to xo Cx1x2

    2.2 pF

    Published datasheet value

  • yitoys Cy1y2

    1.7 pF

    Published datasheet value

  • Control grid to all other elements C9

    1 pF

    Published datasheet value

  • Cathode to all other elements Ck

    4.5 pF

    Published datasheet value

  • conditions, adjusted for optimum spot size at a beam current lg =

    10 uA

    Published datasheet value

  • at screen centre lLw

    0.5 mm

    Published datasheet value

  • in corner area lw. approx

    0.6 mm

    Published datasheet value