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  • BSI
    BS 448-2:1981 Dimensions of electronic tubes and valves - Specification for dimensions of United Kingdom electronic tubes
    Edition: 1981
    $526.05
    / user per year

Description of BS 448-2:1981 1981

This Part of this British Standard covers such physical requirements of the bases, caps and outlines of electronic tubes as are necessary to ensure mechanical compatibility and satisfactory electrical contact. Associated gauges and pin straightening tools are also covered. This standard deals only with electronic tubes registered in the United Kingdom and not covered in BS 448-1.

Owing to the many variables involved, including tolerances on pin diameters and permissible pitch circle eccentricity, it is not practical or economical to ensure complete compatibility in isolated cases where many component parts are on extreme opposing limits.

The standard is divided into four sections. Section 1 specifies general requirements for bases and associated gauges and pin straightening tools. Sections 2, 3 and 4 contain data sheets specifying the dimensions of caps, bases, outlines and associated gauges and pin straightening tools.

Appendix A, Appendix B and Appendix C identify which Part of BS 448 deals with which particular component.



Data sheets give drawings and dimensions of bases, caps and associated gauges and pin straightening tools for those electronic tubes registered in the United Kingdom.

Standard NumberBS 448-2:1981
TitleDimensions of electronic tubes and valves - Specification for dimensions of United Kingdom electronic tubes
StatusConfirmed
Publication Date1981-07-31
DescriptorsNumerical designations, Gauges, Electron tube structure, Shape, Electronic equipment and components, Electron tube components, Hand tools, Electron tubes, Electric pins, Cathode-ray tubes, Electric contacts, Dimensions, Designations
ICS31.100 Electronic tubes
CommitteeEPL/100
ISBN0 580 12074 0
PublisherBSI
Pages70

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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