论坛 › 音响DIY论坛 › 我的后级,开了个头

GorbarchoV 发表于 2006-9-17 11:52

电源真强，不过据说只用两个大容量的电容比较好～

jwjw 发表于 2006-9-17 09:06

为何不用肖特基呢？SB3080F 80V耐压够不够？压降0.2V左右，发热很低

yacasu 发表于 2006-9-17 08:27

<br/>

yacasu 发表于 2006-9-17 08:23

<div class="quote"><b>以下是引用<i>Faithfully</i>在2006-9-17 1:27:00的发言：</b><br/><p><a href="http://www.hifidiy.net/bbs/UploadFile/2006-9/20069921563038458.jpg" target="_blank"></a></p><p>多只二极并联没有均流,短时间内没问题,可时间一长危险......</p></div><p>没有并联.这里是6条桥.左右声道是独立供电的,电流放大用双桥,电压放大单桥.</p><p>一次买回的管,不分大小都装上了.电压放大可谓用牛刀.电流放大751可吃力了,现在正常工作非常烫手.调试时一不小心,几条管过热了!</p><p></p>

yacasu 发表于 2006-9-17 08:15

<div class="quote"><b>以下是引用<i>DANIELYANG</i>在2006-9-16 22:48:00的发言：</b><br/><p>lite的A16＋A680？我原来玩的一样。用rifa做后级滤波低频会有点少，我的A680用了4个6万u的菲利普，低频才比较满意。</p><p>不过我做的A16听感却还比不上一个简单的5534前级，一怒之下……咔嚓了</p></div><p></p>&nbsp;我用的是16个1.5万的rifa.还是比较满意的.A16的确不太好

Faithfully 发表于 2006-9-17 01:27

<p><a href="http://www.hifidiy.net/bbs/UploadFile/2006-9/20069921563038458.jpg" target="_blank"><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.hifidiy.net/bbs/UploadFile/2006-9/20069921563038458.jpg" border="0" style="WIDTH: 500px;"/></a></p><p>多只二极并联没有均流,短时间内没问题,可时间一长危险......</p>

jwjw 发表于 2006-9-16 23:58

电源+散热重量和体积都占了95%，放大部分只占了5%，呵呵

DANIELYANG 发表于 2006-9-16 22:48

<p>lite的A16＋A680？我原来玩的一样。用rifa做后级滤波低频会有点少，我的A680用了4个6万u的菲利普，低频才比较满意。</p><p>不过我做的A16听感却还比不上一个简单的5534前级，一怒之下……咔嚓了</p>

本少 发表于 2006-9-16 21:36

??

<p>猛男，，，，，，</p><p>做好要用吊车才行</p>

yacasu 发表于 2006-9-16 21:25

花了几天时间,终于搞掂了

<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>

yacasu 发表于 2006-9-18 21:15

<p>C牛是多年前朋友送的.电解好多地方都有卖.坛子里有好多兄弟有卖,价钱都差不了多少.</p><p>两天煲了几个小时,感觉是力大无穷,收发自如.推美之声三号箱子,各频断都不错.输入电位器在零位时,耳朵贴在喇叭上没有丝毫声音,还以为没开机.夜深人静时贴在高音能有一点噪音.离开10CM即不可闻.但定位不好,不知是不是与线材有关系.</p><p>由于以前没玩过平衡,暂时还有能找到一台机来对比.总体来说还过得去.</p>

引我向上 发表于 2006-9-18 13:03

以下是引用yacasu在2006-9-7 21:21:00的发言：<p><img src="attachments/dvbbs/2006-9/20069721181524993.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/2006-9/20069721181524993.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></p><p><br/></p><p><img src="attachments/dvbbs/2006-9/20069721183443771.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/2006-9/20069721183443771.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p><p></p><p><img src="attachments/dvbbs/2006-9/20069721184882083.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/2006-9/20069721184882083.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p><p></p><p><img src="attachments/dvbbs/2006-9/20069721192190578.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/2006-9/20069721192190578.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p><p></p><p><img src="attachments/dvbbs/2006-9/20069721194287714.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/2006-9/20069721194287714.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></p><p></p><p></p><p><br/></p><p><img src="attachments/dvbbs/2006-9/20069721195739489.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/2006-9/20069721195739489.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></p><p><br/><img src="attachments/dvbbs/2006-9/20069721201466566.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/2006-9/20069721201466566.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></p><p><br/><img src="attachments/dvbbs/2006-9/20069721202622368.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/2006-9/20069721202622368.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p>以下是引用胆大的人在2006-9-7 21:28:00的发言：什么冬冬来的楼主的RIFR和C牛在哪里买来的呀我也好想要啊能不能告诉一下吗

引我向上 发表于 2006-9-18 12:52

以下是引用njyd在2006-9-8 9:19:00的发言：俺做的 <img src="attachments/dvbbs/2006-9/2006989213275600.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/2006-9/2006989213275600.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2006-9/2006989182281784.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/2006-9/2006989182281784.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /> <img src="attachments/dvbbs/2006-9/2006989183484592.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/2006-9/2006989183484592.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /> <img src="attachments/dvbbs/2006-9/2006989184715131.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/2006-9/2006989184715131.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /> 麦景图变压器重哪点搞来的呀极品

GorbarchoV 发表于 2006-9-18 04:27

以下是引用海龙豚在2006-9-17 23:33:00的发言：<br><p></p>总书记讲的只用两个滤波电容好些有无依据？ 不好意思～我也是道听途说的，不知原理．．．

海龙豚 发表于 2006-9-17 23:33

<div class="quote"><b>以下是引用<i>GorbarchoV</i>在2006-9-17 11:52:00的发言：</b><br/>电源真强，不过据说只用两个大容量的电容比较好～</div><p></p>总书记讲的只用两个滤波电容好些有无依据？

因心 发表于 2006-9-17 23:22

<p>强人+米人.</p><p>A5很多用料都不好收集,只有围观的分了</p>

狩猎人 发表于 2006-9-17 23:16

电源阵容强大,机内飞线有点多,介绍一下听感.

电子管迷 发表于 2006-9-22 20:08

电容应直立，横放可能有部分电极浸不到电解液造成电解容量减少和漏电增加。

老鸭 发表于 2006-9-27 08:24

米人

Biglee_163 发表于 2006-9-26 22:20

这么大的电容阵没搞开机延时电闸会跳吗？

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