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Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Cathode Ray ·CathodeRay

AW4380

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
B12A
Base pins
-
Nominal heater
6.3 V / 300 mA

Description

43 cm monochrome cathode-ray picture tube with magnetic deflection, electrostatic focusing and clear screen.

Socket description

Duodecal 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12A
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; source publishes screen, focusing, deflection and high-voltage operating data.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

  • Deflection Angle

    90 degree

  • DeflectionMethod

    Magnetic

  • FocusMethod

    Electrostatic

  • UsefulDiagonalMinimum

    390 mm

  • UsefulWidthMinimum

    362 mm

  • UsefulHeightMinimum

    273 mm

Data set 02

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 03

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

    390 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

Data set 04

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • ScreenDiagonal

    43 cm

  • Deflection

    Magnetic text

Data set 05

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Capacitance

  • Grid No.1 capacitance

    7 pF

  • External conductive coating to final accelerator capacitance

    1400 pF

    Maximum

Other

  • Final accelerator operating voltage

    16000 V

  • Grid No.2 operating voltage

    300 V

  • Grid No.1 cutoff voltage range

    40 to 80 V

  • Final accelerator minimum voltage

    12000 V

  • Final accelerator maximum voltage

    18000 V

  • Maximum grid No.2 voltage

    500 V

  • Maximum negative grid No.1 voltage

    150 V