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Specialized - Cathode Ray ·CathodeRay

6462

National Union magnetic pickup cathode-ray tube that converts small magnetic-field changes into a differential electrical output. Unlike ordinary CRTs, its primary function is sensing magnetic variation rather than visual display.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B7G
Base pins
-
Nominal heater
6.3 V / 175 mA

Description

National Union 6462 magnetic pick-up cathode-ray tube that converts small magnetic-field changes into a differential electrical output.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
175 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
Plate resistance
2600000 Ω
Max plate voltage
400 V
Max cathode current
2.5 mA

Promoted ratings/characteristics read from the approved National Union datasheet.

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

1938 National Union

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Deflection voltage

    425 V

    Magnetic pick-up tube

  • Load resistance per plate

    0.5 Mohm

    Published datasheet rating