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首页> 外文期刊>Electrical Engineers - Part III: Radio and Communication Engineering, Journal of the Institution of >The Calculation of Amplifier Valve Characteristics
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The Calculation of Amplifier Valve Characteristics

机译：放大器阀特性的计算

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The anode-current/grid-voltage characteristics of valves are determined with the help of diagrams and design charts based on Langmuir's data on the current flow in plane diodes with consideration of initial electron velocities, and on Oertel's and Herne's equations for the amplification factor. The theory is extended to multi-grid valves and to valves possessing a more complicated shape. Special attention is given to the ????????variable-mu effect,???????? which represents one of the limiting factors in practical valve construction. A simple expression describing this effcct is derived, and a chart of the ????????variable-mu constant,???????? ????????, is presented, in which space charge is taken into account. Measurements on specially made experimental valves and on several types of modern mass-produced valves confirm the treatment of the variable-mu effect and show that the methods outlined in the paper, forming a complete design system, allow the prediction of the static valve characteristic with good accuracy even in closely spaced modern valves. Finally, the influences of a change in control-grid wire diameter, of a statistical variation of control-grid pitch, and of cathode misalignment, are discussed.
机译：阀门的阳极电流/电网电压特性是根据Langmuir关于平面二极管中电流的数据并考虑初始电子速度，并基于Oertel和Herne方程作为放大系数的图表和设计图的帮助下确定的。该理论扩展到多格栅阀和形状更复杂的阀。要特别注意variable-mu效应。这是实际阀门构造中的限制因素之一。导出描述此效果的简单表达式，并给出一个变量μ常数常数的图表。提出了?????????，其中考虑了空间电荷。对特制的实验阀和几种现代量产阀的测量结果证实了可变亩效应的处理，并表明，本文概述的方法形成了一个完整的设计系统，可以预测静态阀特性。即使在间隔很近的现代阀门中也具有很高的精度。最后，讨论了控制栅丝直径的变化，控制栅间距的统计变化以及阴极未对准的影响。

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