一、引言五十年代中期,用在低压速调管里的拱形叶片栅极(图5)和辐射状栅极(图4)相继被制造出来,栅丝为金属钨,栅极支持环的材料为铂或镍。前一种栅极尺寸不宜做大,后一种尺寸范围宽。五十年代末六十年代初,铜质蜂窝状栅极(图2)出现了,由于制造方便和铜的优良特性,这种栅极在低压速调管中广泛应用起来。我们就是从制造这种栅极开始的。 I. INTRODUCTION In the mid-1950s, arched blade grids (Figure 5) and radial grids (Figure 4) used in low-voltage klystrons were fabricated one after the other with grid wires of tungsten metal and grid support rings The material is platinum or nickel. The former gate size should not be bigger, the latter a wide range of sizes. In the late 1950s and early 1960s, copper honeycomb grids (Figure 2) appeared and were widely used in low-voltage klystron tubes because of their ease of manufacture and their excellent copper properties. We started with making this grid.