标准号:IS 2684 Pt.2-1972
发布日期:1972/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard (Part II) covers outlines of miniature receiving tubes of 7-pin base type, dimensions of small-button 7-pin bases used with such tubes and dimensions of gauges suitable for checking the base dimensions.