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MU62

Color-television projection cathode-ray tube with magnetic focusing and magnetic deflection. Philips documentation identifies it as a dedicated projection display tube for color television systems rather than a direct-view picture tube.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 300 mA

Description

Colour-television projection cathode-ray tube with magnetic focusing and deflection.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
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

No fixed ratings are recorded for this section.

CRT-specific optical, focusing, deflection, accelerating-voltage, scan, capacitance, and safety data are retained in TUBE_SECTION_PARAMETER because the locked promoted fields primarily target conventional electrode sections.

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

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Heater voltage
6.3 V
CathodeRay
Heater current
300 mA
CathodeRay
Useful screen diameter minimum
55 mm
ProjectionCRT
Anode and grid No.2 voltage
25 kV
ProjectionCRT
Grid No.1 cutoff voltage minimum
40 V
ProjectionCRT
Grid No.1 cutoff voltage maximum
90 V
ProjectionCRT
Anode and grid No.2 voltage maximum
27 kV
ProjectionCRT
X-ray shielding equivalent lead thickness required
0.5 mm
ProjectionCRT

Construction

Focusing
Magnetic
CathodeRay
Deflection
Magnetic
CathodeRay
Screen color
Blue
CathodeRay

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

Heater voltage
6.3 V
Heater current
300 mA
Grid No.1 cutoff voltage
-40 to -90 V

Construction

Useful screen diameter
55 mm
Deflection method
Magnetic
Focusing method
Magnetic
Screen construction
Projection screen

Other

Operating anode voltage
25000 V
Maximum anode voltage
25000 V
Maximum average beam current
200 uA
Required X-ray shielding equivalent lead thickness
0.5 mm

Capacitance

Grid No.1 capacitance
6.3 pF
Cathode capacitance
6.3 pF
Anode/grid2 to outer coating capacitance
450 pF