菜鸟准备做个6P1单端 请大家指点

redback

菜鸟准备做个6P1单端 请大家指点

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菜鸟准备做个6P1单端 请大家指点

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菜鸟准备做个6P1单端 请大家指点

<br/>

菜鸟准备做个6P1单端 请大家指点

<br/>

菜鸟准备做个6P1单端 请大家指点

<br/>一下午搞了一个小机壳出来 哎不知道我能不能成功

redback

<div class="quote"><b>以下是引用<i>fu-80</i>在2006-8-28 9:09:00的发言：</b><br/>这个耦合电容不小了，因为输入阻抗很高的说。和石机不一样的，石机普遍输入阻抗比较小，所以偶合电容都比较大。</div><p>输入阻抗高 两端获得的信号压降就高。所以不会使信号衰减 对吗？</p>

redback

<p><font face="Verdana">谢谢2位斑竹和YLY100兄的支持和回答。那个输出牛次级的阻抗是4欧 图中标的扬声器阻抗是8欧 如果接的是8欧扬声器会不会造成阻抗不匹配而影响功率输出？</font></p>[em22] 还是输出牛，次级3个端 F---4欧----0 其中的那个F是反馈端 图中反馈电阻接到4欧端还是F端？就我这输出牛来说？

Julien

有示波器很好，结合信号发生器可以边学边做

yly100

<p>单声道？分体式？</p><p>成熟电路，照着做，元器件又没问题的话，很容易出声的</p>

fu-80

这个耦合电容不小了，因为输入阻抗很高的说。和石机不一样的，石机普遍输入阻抗比较小，所以偶合电容都比较大。

redback

0.022UF的输入和耦合电容是不是小了点？会造成低音的不足？这个输出牛的频率范围是多少？

我是低烧友

[B]以下是引用[I]redback[/I]在2006-8-27 22:52:00的发言：[/B][BR]<img src="attachments/dvbbs/2006-8/200682722484715248.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/2006-8/200682722484715248.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-8/200682722494210535.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/2006-8/200682722494210535.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-8/200682722495975799.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/2006-8/200682722495975799.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-8/200682722501693259.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/2006-8/200682722501693259.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-8/200682722504988128.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/2006-8/200682722504988128.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/>一下午搞了一个小机壳出来 哎不知道我能不能成功

这图中的PBC板是从哪里购买的？

全新

<div class="quote"><b>以下是引用<i>yly100</i>在2006-8-28 10:07:00的发言：</b><br/><p>单声道？分体式？</p><p>成熟电路，照着做，元器件又没问题的话，很容易出声的</p></div><p>不行的，现在的电压太高，我试了。现在正常的市电是~235-243V， </p><p>我这里是240V，整流后325V，不能用。 </p><p>滤波后要串入680R/5W的电阻，使接输出牛的电压B+端是265V左右才行</p>[em05]

满酌饮

不要用6N2吧！噪音大啊&nbsp;

啊平

<p>要想声音好的话．还是换头牛牛吧．收音机牛是出不了低频的</p>

qd845

<div class="quote"><b>以下是引用<i>qd845</i>在2006-11-13 21:48:00的发言：</b><br/><p>用6N1或6N3推6P1声音很好</p></div><p></p>

菜鸟准备做个6P1单端 请大家指点

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qd845

<p>用6N1或6N3推6P1声音很好</p>

redback

<div class="quote"><b>以下是引用<i>满酌饮</i>在2006-11-12 8:54:00的发言：</b><br/>不要用6N2吧！噪音大啊&nbsp; </div><p>不是很大 不可闻 呵呵</p><p></p><p>6N3不能直接带换6N2 这个电路是给6N2 N1设计的 即使变了脚估计也不行</p>