哪位大哥能提供一个猫眼的电路啊？[求助]

我爱宝马

哪位大哥能提供一个猫眼的电路啊？？？

我爱宝马

谢谢，楼上的大哥了，我再研究研究

samyang

<img src="attachments/dvbbs/2005-1/200511305112833.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-1/200511305112833.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
电路放大的音频电压，经Ｃ１耦合至Ｒ１与Ｒ２组成的分压器上。由Ｒ２取得的部分音频电压经二极管Ｄ整流变为脉动电压加到指示管的栅极上。声音大时，这个脉动电压也高，栅极电位下降，此时两边荧光靠拢。反之，声音小时，两边荧光拉开。可见荧光会随着声音的轻重急缓而闪烁起来

我爱宝马

我是出学胆电路，看不懂啊，讲解一下吧！

samyang

<img src="attachments/dvbbs/2005-1/200511023447979.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-1/200511023447979.gif\');}" onmousewheel="return imgzoom(this);" alt="" />[em11]