我做的甲類功放.[參賽]

homedou

此機的推動用的是K389+J109.功放管是用了8對2SC5200+2SA1943功放管.現狀態還未調到甲類.正在已類老化狀態.更多我做的機請看我的網站.

<img src="attachments/dvbbs/2005-9/2005921153929987.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/2005-9/2005921153929987.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-9/2005921153940768.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/2005-9/2005921153940768.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-9/2005921153946509.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/2005-9/2005921153946509.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-9/2005921153951676.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/2005-9/2005921153951676.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-9/2005921153959706.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/2005-9/2005921153959706.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

小钳子

此機的全部電路板為3MM厚的雙面板用刀刻而成
此機的全部電路板為3MM厚的雙面板用刀刻而成.(在學校里條件艱苦),那時350元一個月的生活費.硬是讓我擠了1300元左右分次買零件買成.然後2月一回一次家的情況下分批從學校里帶回老家.(江西南昌到上饒),以至于每次回家時都要帶大包小包的零件回家.別人都以為我是做生意的人....呵呵...當年的苦.算了不說了.

原來的圖紙畫在一張繪圖紙上.做好機器.圖紙卻放在了學校.後來就不見了.但電路和這斯巴克的機器圖紙是差不多的.所以我先傳上一張圖紙給大家參考一下,(改動:後面的場效應管改成了C5200和A1943).<img src="attachments/dvbbs/2005-9/200592117933286.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/2005-9/200592117933286.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

流水云间

homedou

因不會用更高級的圖形編輯軟件.<img src="attachments/dvbbs/2006-1/200611916586693.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/2006-1/200611916586693.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

我的更多做品可以到我的網站去看.www.bestoa.net/bbs

本少

不错,值得学习.
不过机内连线太乱.

阿文

K389+J109应该是输入级使用的，不是用来做推动的．

西风瘦马

电流再调大散热器估计抗不住。。。[em04]

gxzhang

布线太乱，不知音质如何？

地球人啊

最大的问题是你的散热片太小啊，做不成甲类啊。

audio88

无大环路反馈,好电路,楼主能做甲类吗?我做的A-88,终终未能达甲类,但总体表现已不错了<font size="2">。</font>

audio88

学习了

hanjunbo

联线不整洁

秦川浪子

值得学习，不错

ngzxm

这个电路我做过的，效果不错。不过你的散热片放置方法是不可能胜任甲类工作的，建议加上两个轴流风扇

904905005

LZ采用多大电压与电流啊？此散热板我也玩过，我采用正负40V供电，每块散热板也安装
4对5200/1943,电流调到300毫安/每管时，静态下散热板不到30分钟已经达到80度！ 当时气温是28度左右，也没有盖机箱，LZ是怎样做到甲类啊???莫非LZ是在北极使用此HI-FI利器？？？

xsj1212

这电路应该是比较经典的？

lhz02

值得学习.
不过机内连线太乱:

wdccj

请教一下，我的max     dap800功放,每个声道共用了29个三极管。左右对称放大，推动 2sc5200和2sa1943，2N5401*5,   2N5551*5,  D649*5,   D669*5，  a1043*2,c2328*2,   2sc5200 *5,  2sa1943*5,可是声音不怎么样，为什么，放大级输出用了22k的电阻。

刀哥

一直不明怎样才算甲类。

kaka72

看着 晕！