wongkm33 发表于 2005-2-20 21:29

你咪话小嘢,贵的晶片电阻百多元一片!

以下是引用DANIELYANG在2005-2-20 14:42:00的发言:
有没有人研究过用什么电阻最好?反正只有两个,贵一些的也能用得起

两片说不定烧了几百米!

aeon 发表于 2005-2-20 20:16

转换电阻我用上68欧的金属膜

已经恨满意。
电容,特别是8214 的LPF端接 的电容,对声音的影响也恨大。
曾经试过33欧的电阻,噪音相对来说大了点,输出的电平也低了恨多,但低频恨爽呢。

HQ 发表于 2005-2-20 17:55

对于 I/V电阻,电容的确很重要,对音色影响非常大。

电阻,电容试过不少。以下的是个人认为所试过之中最好的。
可惜很难寻觅到合适的数值。这几只也是绝无仅有。<img src="attachments/dvbbs/2005-2/2005220175227911.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/2005-2/2005220175227911.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

<img src="attachments/dvbbs/2005-2/2005220175535384.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/2005-2/2005220175535384.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

文招 发表于 2005-2-20 17:52

我倒认为是时间同步

那位大虾说说

HQ 发表于 2005-2-20 17:44

就是

以下是引用aeon在2005-2-20 17:21:00的发言:
1541<I></I> 的两个5V电源间<I></I> 的压差控制在0。6V内,应该是保护手段。

aeon 发表于 2005-2-20 17:21

这样做法好象是让

1541 的两个5V电源间 的压差控制在0。6V内,应该是保护手段。

Julien 发表于 2005-3-2 17:10

我老被他们说 用垃圾货,呵呵

主要是用过工业品CBB做滤波

文招 发表于 2005-3-2 17:02

我装的都是就现货,垃圾啦

HQ 发表于 2005-3-2 16:31

输出电容试过用同规格的400V耐压效果更好



可惜体积太大装不下



Jensen银膜就买不起了。

Julien 发表于 2005-3-2 15:50

这是毒贴。。。少儿不宜,哈哈

要是胆机部分用点Jensen银膜,RMG碳阻更毒了

文招 发表于 2005-3-2 15:49

哈哈,没事,我全部都用大于100uF的

HQ 发表于 2005-3-2 15:35

胆输出部分已经装好。


高压滤波电容实在不好找。牌子好一点的拆板电容都被JS炒得巨贵,体积太大的又放不下,只好暂时用上这些,整流后依次为10U,47U,100U,220U.最后一只用到220U 不知会不会大了点。对胆电路实在是太菜。

阴极电容试了不少电容。
反而觉得这只普普通通的尼康6.3V/470U 最合口味呵呵。文招别笑我<img src="attachments/dvbbs/2005-3/200532153440188.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/2005-3/200532153440188.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-3/200532153453965.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/2005-3/200532153453965.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-3/20053215355674.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/2005-3/20053215355674.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-3/200532153516992.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/2005-3/200532153516992.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />



HQ 发表于 2005-3-2 11:56

内里的玄机不是你我能猜得透的

以下是引用pot在2005-3-2 9:18:00的发言:
看大小,好象是一样容量的,是否内部有什么玄机。

这14个电容不惜成本的终极解决方案是什么,MIT<I></I> RTX<I></I> /JENSEN/REL<I></I> TFT。。。。。。。

470PF的电容好象没有什么高级产品可选呀。

这个S2比较正点呀,冲过去拆。




文招 发表于 2005-3-2 10:20

我怎么看不出wongkm33兄的和马7的有什么区别

pot 发表于 2005-3-2 09:33

wongkm33一起去抢S2吧,你一片我一片


wongkm33兄听了之后再说,如果个人感觉有提高就值了,不要管别人怎么说。不就图个乐吗?






pot 发表于 2005-3-2 09:18

cd7的14个电容有什么讲究吗?


看大小,好象是一样容量的,是否内部有什么玄机。

这14个电容不惜成本的终极解决方案是什么,MIT RTX /JENSEN/REL TFT。。。。。。。

470PF的电容好象没有什么高级产品可选呀。

这个S2比较正点呀,冲过去拆。
以下是引用HQ在2005-3-1 22:21:00的发言:
<img src="attachments/dvbbs/2005-3/200531222013750.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/2005-3/200531222013750.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-3/200531222052351.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/2005-3/200531222052351.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />




purer 发表于 2005-3-1 23:18

嘿嘿…………

看33兄台的东西有点像潮汕非离谱公司的东西

DANIELYANG 发表于 2005-3-1 22:24

嘿嘿

以下是引用pot在2005-3-1 21:44:00的发言:

有点疑问,为什么都是11264<I></I> 9713,难道就只有这一周有S2出产,又偏偏以前什么时候也不出产,占尽天时地利人和,一周生产的都是超级酷的优质产品,S2可能是百里挑一,那么多其他的9713都去了哪里,或者是PHILIPS。。。。。
要不就是台湾的生产水平真的是太高了,也或者是大陆。。。。。。
看来只有真正有人来测试一下才能说明了。

HQ 发表于 2005-3-1 22:21

马兰士CD7也用这种IC

<img src="attachments/dvbbs/2005-3/200531222013750.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/2005-3/200531222013750.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-3/200531222052351.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/2005-3/200531222052351.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

zhonggx 发表于 2005-3-1 22:05

这个DAC很好吗?失真达到多少?

有没有TI的PCM1792好?
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