IEC 60151-4:1963 电子管和电子阀电气特性的测量 - 第4部分:噪声系数的测量方法 Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor 标准号:IEC 60151-4:1963 发布日期:1963-01-01
IEC 60151-4:1963
IEC 60151-4:1963 电子管和电子阀电气特性的测量 - 第4部分:噪声系数的测量方法 Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor 标准号:IEC 60151-4:1963 发布日期:1963-01-01
IEC 60151-4:1963