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Specialized - Cathode Ray ·CathodeRay

DP1078

Philips oscilloscope CRT for oscillography with electrostatic beam control. Manufacturer documentation covers screen, focusing and deflection, capacitance, sensitivity, and operating characteristics; several variants use flat faces and post-deflection acceleration.

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

Description

Flat-face post-deflection-acceleration cathode-ray oscilloscope tube. The source provides CRT heater, focusing/deflection, capacitance, scan/sensitivity and operating data where published.

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.

Electrostatic CRT section; published focusing, deflection, capacitance, scan and operating 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

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

  • Useful screen diameter

    90 mm

    DisplayGeometry

  • Horizontal deflection factor

    35 to 47 V/cm

    OscilloscopeCRT

  • Vertical deflection factor

    15 to 20 V/cm

    OscilloscopeCRT

Other

  • Post-accelerator voltage

    4000 V

    OscilloscopeCRT

  • Accelerator voltage

    2000 V

    OscilloscopeCRT

  • Focusing-electrode voltage

    300 to 700 V

    OscilloscopeCRT

  • Grid No.1 voltage

    -45 to -75 V

    OscilloscopeCRT