再次求教

jackyyoung

线路如图，电压放大用12at7;推动用12au7;KT88推挽工作。若想音色能清澈些，两端的延伸更多些，换哪个效果明显？

<img src="attachments/dvbbs/2004-12/2004121721282465.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/2004-12/2004121721282465.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

fwi297

用6N8P+6P3P是最好的,其它的......

jackyyoung

换为12AU7EH好吗？

jackyyoung

怎么办？

jackyyoung

6N8P+6P3P代替谁？好像不能直接代换啊！请指教。