Skip to content
Please enter a keyword to search

  • BS 448-1:1981

    Current The latest, up-to-date edition.

    Dimensions of electronic tubes and valves IEC dimensions

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-04-1981

    Publisher:  British Standards Institution

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    National foreword
    Cooperating organizations
    Recommended practice for the preparation of drawings
    for inclusion in IEC Publication 67
    1. Scope
    2. General rules
    3. Base drawings
    4. Outline drawings
    Inter-conversion and rounding off of inch and
    millimetre dimensions
    1. Original units
    2. Toleranced dimensions
    3. Untoleranced dimensions
    4. Conversion of inches into millimetre
    5. Conversion of millimetres into inches
    Appendices
    1. Tables for conversion from inches into millimetres
    2. Tables for conversion from millimetres into inches
    Part I. Bases
    Quick reference guide to pin numbers and pin circle
    diameters for various bases
    List of drawings
    General
    Explanation regarding reference letters on drawings
    Part II. Outlines
    List of drawings
    General
    Explanation regarding reference letters on drawings
    Part III. Caps
    List of drawings
    General
    Part IV. Special gauges for cathode-ray tubes
    List of drawings
    General
    Additions to the lists of national codes appearing
    on the standard sheets of Publication 67
    National appendix
    A. United Kingdom coded bases, coded reference
         line gauges for CRTs and coded caps

    Abstract - (Show below) - (Hide below)

    Provides general information, base drawings, outline drawings and conversion data for a large range of internationally used electronic tubes and valves.

    Scope - (Show below) - (Hide below)

    This text gives recommended practice for the preparation of drawings for inclusion in this Publication.

    General Product Information - (Show below) - (Hide below)

    Committee EPL/100
    Development Note Also numbered as IEC 60067. Supersedes 79/21173 DC, BS 448-1(1953) & BS 448-2(1953). (06/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 4319-1:1968 Methods of measurement of the electrical properties of electronic tubes and valves (excluding microwave devices) Essential conditions for measuring equivalent input and output admittances
    BS EN 111000:1993 Harmonized system of quality assessment for electronic components. Generic specification: cathode ray tubes
    BS CECC 46001:1977 Specification for harmonized system of quality assessment for electronic components. Blank detail specification: cold cathode indicator tubes
    BS EN 114000:1993 Harmonized system of quality assessment for electronic components: generic specification: photomultiplier tubes
    BS E9065:1976 Specification for harmonized system of quality assessment for electronic components. Blank detail specification: small power transmitting tubes of anode dissipation up to 1 kW
    BS EN 113000:1993 Harmonized system of quality assessment for electronic components. Generic specification: camera tubes
    BS 448-2:1981 Dimensions of electronic tubes and valves Specification for dimensions of United Kingdom electronic tubes
    BS 9041:1978 Rules for the preparation of detail specifications for gas filled microwave switching tubes of assessed quality: tunable and broadband TR tubes and TR limiters. Full assessment level
    BS CECC 45004:1977 Specification for harmonized system of quality assessment for electronic components. Blank detail specification: disc seal power tubes
    BS 9054:1971 Rules for the preparation of detail specifications for radar display cathode ray tubes of assessed quality
    BS E9063:1976 Specification for harmonized system of quality assessment for electronic components. Blank detail specification: industrial heating triodes
    BS 9040:1978 Specification for gas-filled microwave switching tubes of assessed quality: generic data and methods of test
    BS 5069-1:1980 Dimensions of piezoelectric devices Specification for standard outlines and pin connections for quartz crystal units
    BS EN 111101:1996 Specification for harmonized system of quality assessment for electronic components. Blank detail specification. Display storage tubes
    BS EN 114001:1997 Harmonized system of quality assessment for electronic components. Blank detail specification: photomultiplier tubes
    BS CECC 45000:1977 Specification for harmonized system of quality assessment for electronic components: generic specification: space-charge controlled tubes
    BS CECC 46000:1978 Harmonized system of quality assessment for electronic components: generic specification: cold cathode indicator tubes
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective