周年耳放

s

对比过DB和633之后，我最后还是用了四个633并联作缓冲。DB比起633平淡，动态、解析、音乐味略逊于633，但比633就便宜很多了。装箱时，也顺便帖一片海绵，把DB也放入箱子里，一齐存入比较方便，换听也方便。再次感谢华师老师，这东东也是在他指导下装成的。
<img src="attachments/dvbbs/2006-2/2006212131258105.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/2006-2/2006212131258105.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

似水流年

搞成这个样子已经很不错了.帮顶一下....

s

这是一个很曲折的电源，通过它我初步认识了三极管和场管实际上应用的东东。在这要感谢华师本部的一位老师，是他的指导和帮助让我最后解决这个电源。可惜我还是手笨脚笨的，装箱时还是把原来的797搞挂了，5534对比以前的797显得肥大和慢，声音的弹性也不如797。晕呀。。。但听了两天后，也发现5534的好处，嘿嘿。。。

<img src="attachments/dvbbs/2006-2/2006212131114451.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/2006-2/2006212131114451.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

冰罐

s

一只双12双20的牛，还不错。它合适的电压让我可以尝试了多种的供电方式和OP组合。双12并起输出不加稳压大约是正负15V，可以上637，627。单20输出不加稳压大约是正负12.5V，可以上8610。双20V输出加稳压则可以得到合适的电压。后来RPWT解决后，我粗粗对比过不加稳压和套板的电源，加上以前用过的并联，最后还是选择了套板的电源。

<img src="attachments/dvbbs/2006-2/2006212131028159.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/2006-2/2006212131028159.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

s

在第一次装机中，发现用单路的开关时，关机时会有一阵阵呼啸声，但如果直接拔电源插头就不会有。百思不得其解，想把原来的开关换成双路的，双没有找到这么漂亮的开关。。。
在原来的设想，是想把PPA也当成前级使用的。但年过完后，情况有变了，我可能以后很长一段时间都没有条件上功放音箱了，加上很想试试电池作电源，自己又懒动手到时再拆。所以就装成了双开关，在原来后板的孔上装了一个双路开关，用以开关插座到牛的通路，面板上的开关就控制是电池供电还是交流供电，打上电池供电，打下交流供电。没有电池时，打上就是关交流供电，打下就是开交流供电。只接有电池时就相反。另一个孔上装了一个RCA，权当电池的接头，没米找好接头了，嘿嘿。。。
<img src="attachments/dvbbs/2006-2/200621213853996.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/2006-2/200621213853996.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

s

RA1的耳机插座，得益于一位在福建的朋友的慷慨，谢谢。。。嘿嘿。。。
<img src="attachments/dvbbs/2006-2/20062121375122.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/2006-2/20062121375122.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

s

问题首先是PCB到耳机插座的线，焊到PCB上后作了几次拉扯后，屏蔽层切口的线有所外露，露械可不得了，万一和PCB焊点短路可就麻烦了。还有就是原来留的屏蔽层引线太短，接不到地。改。。。还有就是原来板子上的指示灯的串联电阻不太合适我所用的电压，自己死蠢也没有留意到这个问题，又改。。。电源开关也因为想留下空间以后一试电池，也改。。。
<img src="attachments/dvbbs/2006-2/200621213719206.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/2006-2/200621213719206.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

s

第一次装箱后，发现了不少问题，于是又重新拆了重装，累。。。
<img src="attachments/dvbbs/2006-2/200621213631278.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/2006-2/200621213631278.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

s

电源板和放大板放在同一平面时比箱子略大。于是我用不同高度的铜柱装电源板和放大板错位安装，并使用箱子的底板作电源散热。视觉效果和散热效果都还不错的。这是第一次装箱的PP，嘿嘿。。。
<img src="attachments/dvbbs/2006-2/200621213534985.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/2006-2/200621213534985.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

小野

[em10]

SAGAQWE

机内设置成交流/直流两种不同的供电.
巳可见楼主在焊制此耳放时的严谨态度.

沧海一粟

装得很漂亮！赞一个！

HQ

以下是引用s在2006-2-12 13:08:00的发言：
RA1的耳机插座，得益于一位在福建的朋友的慷慨，谢谢。。。嘿嘿。。。
<img src="attachments/dvbbs/2006-2/20062121375122.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/2006-2/20062121375122.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

cfyl

回复 10# 似水流年

GEmini_UFO

HQ 发表于 2006/2/25 01:22

    这种耳机插座现在很少了，市场上都不见了。

GEmini_UFO

HQ 发表于 2006/2/25 01:22

    TB上偶尔见到，需要的话PM地址

GEmini_UFO

回复  似水流年
cfyl 发表于 2013/2/9 17:38

    请勿灌水

LF-GODDESS

这种耳机插座现在很少了，市场上都不见了。
GEmini_UFO 发表于 2013-2-9 17:50

    乐群甬声有这种的,做工不错,应不难买,但插拨费力,表面粗糙点,有人还不喜欢呢

GEmini_UFO

乐群甬声有这种的,做工不错,应不难买,但插拨费力,表面粗糙点,有人还不喜欢呢
LF-GODDESS 发表于 2013/2/9 19:32

    幸好我家囤了好多这个。谢谢，祝新年快乐