标准号:IEC 60151-4:1963
发布日期:1963-01-01
Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor
IEC 60151-4:1963
标准号:IEC 60151-4:1963
发布日期:1963-01-01
Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor
IEC 60151-4:1963