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Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Cathode Ray ·CathodeRay

AW4388

European rectangular monochrome television picture tube with electrostatic focusing, magnetic deflection, and a metal-backed or aluminized screen. Manufacturer documentation supports high-voltage direct-view receiver service with compact wide-angle geometry.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B8H
Base pins
-
Nominal heater
6.3 V / 300 mA

Description

Rectangular 110-degree television picture tube with electrostatic focusing, magnetic deflection, grey glass, and metal-backed screen.

Socket description

Neoeightar 8-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B8H
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
Max plate voltage
16000 V

CRT section; maximum anode supply approximately 16 kV is published.

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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Interelectrode capacitances

    Published

    See source sheet for electrode-specific capacitance values

Application

  • Application

    Monochrome television picture tube

    Television receiver service

Data set 02

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Construction

  • Screen color

    White

    TelevisionCRT

  • Focusing

    Electrostatic

    TelevisionCRT

  • Deflection

    Double magnetic

    TelevisionCRT

Other

  • Screen useful dimension

    400 mm

    TelevisionCRT

  • Final accelerator voltage

    16 kV

    TelevisionCRT

  • Grid No.2 voltage

    300 V

    TelevisionCRT

  • Heater voltage

    6.3 V

    TelevisionCRT

  • Heater current

    300 mA

    TelevisionCRT

  • Focusing voltage range

    0 to 400 V

    TelevisionCRT

  • Grid No.1 extinction voltage

    30 to 94 V

    TelevisionCRT

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Capacitance

  • Grid No.1 capacitance

    6 pF

  • Cathode capacitance

    4 pF

  • External conductive coating capacitance

    1500 pF

    Maximum

Other

  • Final accelerator minimum voltage

    13000 V

  • Final accelerator maximum voltage

    16000 V

  • Maximum grid No.4 voltage

    1000 V

  • Maximum negative grid No.4 voltage

    500 V

  • Maximum grid No.2 voltage

    500 V

  • Maximum negative grid No.1 voltage

    150 V