我呆故我DIY之TDA1541胆DAC后记

HQ

返璞归真

[em11]

Saxophone

<img src="attachments/dvbbs/2005-9/200596122937498.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/2005-9/200596122937498.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

先调一下EI牛空载电流，串上电流表，一边看一边把四支罗丝松一松，其中上面二支罗丝对空载电流的影响比较大，在空载电流的大小和罗丝的松紧程度上作个比较平行的取舍，用502把罗丝和罗母粘住就OK了。我自己的EI牛就从68MA调到40.6MA，还不错。。。[em11]

原来的开关是单路的，我比较怕死，换成了两路的，并在火线上并了只电容。。。[em09]

<img src="attachments/dvbbs/2005-9/20059612297644.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/2005-9/20059612297644.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

NEC转盘、胆DAC、OPA627耳放、HD580

[em11]

<img src="attachments/dvbbs/2005-9/200596122359303.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/2005-9/200596122359303.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

电容。。。又换了。。。[em09]
<img src="attachments/dvbbs/2005-9/200596122242902.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/2005-9/200596122242902.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

<img src="attachments/dvbbs/2005-9/20059612221816.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/2005-9/20059612221816.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

换成了你吃康。。。[em02]
<img src="attachments/dvbbs/2005-9/200596122121656.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/2005-9/200596122121656.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

<img src="attachments/dvbbs/2005-9/200596122034922.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/2005-9/200596122034922.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

重新买了四只电阻换了换。[em11]
<img src="attachments/dvbbs/2005-9/20059612191887.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/2005-9/20059612191887.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Saxophone

换了两只1541的退耦电容。
<img src="attachments/dvbbs/2005-9/20059612185374.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/2005-9/20059612185374.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />