IEC 60151-6:1965 pdf download 电子管和电子管电性能的测量 - 第6部分:对电子管和电子管施加机械冲击(脉冲)激励的方法 Measurements of the electrical properties of electronic tubes and valves. Part 6: Methods of application of mechanical shock (impulse) excitation to electronic tubes and valves
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