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Specialized - Cathode Ray ·CathodeRay

A5514X

Large 55–56 cm-class monochrome television picture tube for high-voltage direct viewing, with manufacturer-defined magnetic deflection, focusing, and screen characteristics.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12F
Base pins
-
Nominal heater
6.3 V / 900 mA

Description

55 cm self-protected shadow-mask color television picture tube with three electron guns and magnetic convergence.

Socket description

All-glass CRT 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12F
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
900 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
25000 V

CRT section. Maximum ratings, operating conditions, capacitances, optical and mechanical values are preserved as parameters where 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

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Heater or filament voltage

    6.3 V

    Published nominal value

  • Heater or filament current

    900 mA

    Published nominal value

  • Screen diagonal

    55 cm

    Published

  • Deflection angle

    90 deg

    Published

Data set 02

1976 ITT Picture Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • tion angle and

    36.5 mm

  • The useful screen area of

    1465 cm

  • has nearly straight sides of 44 x

    35 cm

  • {appr.) with 3 x4 aspect ratio. The filter- Minimum Useful Diagonal

    514 mm

  • glass of the faceplate has a light trans- Screen Dimensions Horizontal

    443 mm

  • mission of 52 % (appr.). Vertical

    346 mm

  • angular dot groups - colour friplets - Area(approx.)

    1465 cm

  • vated sulfide phosphors, the red emitting Neck Diameter

    36.5 mm

  • phosphor is composed of yttrium com- Overall Length 483£

    9.5 mm

  • Weight

    16 kg

  • 3. Maximum Ratings CgdgSalm max

    2500 pF

  • Codg

    5 a

  • Codg5a/m min (2)

    2000 pF

  • ©

    27.5 kV

  • © - 27,5 kV CgdgSalm’ {approx.) (2)

    280 pF

  • Ugdgsa min

    20 KV

  • To

    455 a

  • 293__ max

    6 kV

  • Ugz p max

    1 KV

  • ':-Ucl'l} max

    200 V

  • @

    250 V

  • U_px p_max _@ =

    300 V

  • @

    180 V

  • @ 180 V neagrest centre of screen (2)

    0.64 mm

  • U+f.-"k max‘ @

    135 V

CircuitDesignRatings

  • u@

    63 V

  • u@ 63V Ig < (2)

    -45 to 15 uA

  • Ugdgsa _ S SRRy Ig1 (=Uq) =

    150 V

  • Ugdgsa _ S SRRy Ig1 (=Uq) = 150V =+ (2)

    5 uA

  • s

    42 to 50 kV

Capacitance

  • Ugz cuort @ @

    285 to 685 V

  • at (-Ug) =

    150 V

  • at (-Ug) = 150V ez Bal (approx.) (2)

    6 pF

  • (-Ua1) cutors @

    95 to 190 V

  • at Ugz =

    400 V

  • at Ugz = 400V G (approx.) (2)

    5 pF

  • Cg3 (approx.)

    6.5 pF