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Specialized - Cathode Ray ·CathodeRay

5DKP11

Five-inch aluminized high-resolution CRT with magnetic focusing and deflection, specifically intended for photorecorder service. Its fine-detail display supports photographic capture of electronically generated information.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
OCTALCRT8
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

The Sylvania 5DKP11 is a 5-inch aluminized high-resolution CRT with magnetic focus and deflection, intended for photorecorder service.

Socket description

Octal 8-contact CRT base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
OCTALCRT8
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
600 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.

Magnetic-focus/magnetic-deflection CRT electron-gun/display 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

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

    Nominal; ±10%

  • Focusing Method

    Magnetic text

  • Deflection Method

    Magnetic text

  • Deflection Angle

    53 deg

    Approximate

  • Fluorescence

    Blue text

  • Persistence

    Medium Short text

  • Screen Aluminized

    Yes text

  • Cathode-to-All Capacitance

    5 pF

    Approximate

  • Grid1-to-All Capacitance

    8 pF

    Approximate

  • Maximum Undeflected Spot Displacement

    9 mm

  • Maximum Line Width

    0.16 mm

Other

  • Maximum Anode Voltage

    8800 V

  • Maximum Grid2 Voltage

    770 V

  • Maximum Grid1 Negative Bias

    180 V

  • Maximum Grid1 Positive Peak

    2 V

  • Maximum Heater-Cathode Voltage

    180 V

    EitherPolarity

  • Anode Voltage

    8000 V

  • Grid2 Voltage

    250 V

  • Grid1 Cutoff Voltage Minimum

    -75 V

  • Grid1 Cutoff Voltage Maximum

    -30 V

  • Focusing Coil Current

    136 mA

    Nominal; ±15%

  • Maximum Grid1 Circuit Resistance

    1.5 Mohm