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楼主 |
发表于 2005-3-26 00:07
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第一个声道由于有点先做炮灰的意思
所以用管子上有所保留,没有用最配对的管子,第二个声道是今天刚刚才完成的,240的源极电阻压降都在450MV正负10MV,对第中点电位,基本上在3MV以内,有时候测出来是1MV左右,呵呵:)
开机一段时间后温度上升,但是由于用风扇散热,基本上开机1个小时左右用手摸管子附近的散热片,温度有点热,不过手也可以一直放着,不烫手,估计再60度以内吧。
今天还测试了一下波形
这是20KHZ正弦波的
<img src="attachments/dvbbs/2005-3/20053260449300.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/2005-3/20053260449300.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
这是20KHZ方波的
<img src="attachments/dvbbs/2005-3/2005326051441.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/2005-3/2005326051441.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
1KHZ方波的
<img src="attachments/dvbbs/2005-3/20053260552843.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/2005-3/20053260552843.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
可见从波形上来看ALEPH5的方波响应并不是非常完美 |
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