500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/67/1047481215799600.gif');}" onmousewheel="return imgzoom(this);">怎样用两个三极管连接可控硅?
请各位高手帮忙,我根据可控硅原理,用两个三极管连接成可控硅.可是用万用表测AC两端己通了(B端悬空).还需要怎样做才能成为可控硅呀?
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