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Specialized - Cathode Ray ·CathodeRay

4063AB

High-voltage blue-screen cathode-ray instrument tube with electrostatic deflection, a 5 kV final-anode rating, published X/Y sensitivity, and screen-input limits for oscillographic display.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
SPECIAL12
Base pins
-
Nominal heater
2 V / 1.9 A

Description

4063AB is a high-vacuum cathode-ray tube; blue screen. The Standard Valves sheet publishes construction, electrical constants, limiting conditions, and applicable operating data.

Socket description

Special 12-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
SPECIAL12
Base pins
-
Nominal heater voltage
2 V
Nominal heater current
1.9 A
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
Max plate voltage
5000 V

High-vacuum cathode-ray tube.

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

1937 Standard Valves

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Construction

  • Screen color

    Blue

Other

  • Maximum final anode voltage

    5000 V

  • Grid bias cutoff

    30 V

    Approximate

Data set 02

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Interelectrode capacitances published

    1

    See source table for individual capacitances

Data set 03

1947 Standard Valves

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Maximum anode voltage

    5 kV

  • Maximum screen input power

    0.01 W/cm2

  • Third anode voltage

    5 kV

  • First anode voltage

    150 V

Characteristics

  • X sensitivity

    600 mm/V

    V = final anode voltage

  • Y sensitivity

    700 mm/V

    V = final anode voltage