Julien老大请移步这里指教

ken

去年做了一个6p1推挽，管子没条件配对（不过听说6p1一致性挺好的）
电路图：
<img src="attachments/dvbbs/2005-2/20052249321281.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/2005-2/20052249321281.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

感觉声音粗，解析度不够，特别是高频的东西，单端听到的，它都反应不出来
我该如何调整啊？

ken

是在不好意思，昨天晚上单位搞了个游园活动，不去要扣200元，所以昨晚就没上线了。

我抓紧时间好好学习学习！

Julien

声音比较平衡<br/><br/>首先要获得一个优良的变压器，接地方式推荐一点接地，空气感好，噪音也小，唯布线需要动点脑筋。由于这两个图都属于经典线路，工作点一般问题不大，在末级的6P3P或者EL34需要选择配对管才能获得较好的效果.由于这两图都是固定栅压，所以力度很好，调节也方便，可以通过栅负压调整使两管静态电流一致。倒相级的平衡可以输入1KHz或者10KHz的正弦波信号调整长尾倒相两管的屏极电阻，使两管输出的交流信号振幅一致，这个调整在马兰士的机器里有一个电位器R011。

Julien

图上的大多是进口胆管型号，换上对应的国内型号就行

Julien

这第一个图是关氏的K6，特点是屏阴分割倒相，线路简洁
第二个图是仿ARC VT60的图，采用的是长尾倒相，采用了6DJ8
第三个图将长尾倒相进一步改进，改为差分倒相，平衡性好
第四个图是马兰士的Model8，经典长尾倒相，功率级超线性接法
第五图是差分倒相直接推功率级，第一级可以使用12AX7代替。末级三极管接法，共阴级恒流源，线性很好，唯力度不足。是小日本的线路，曾经得奖。
第七图都是经典的威廉迅线路，其优点不在论述了，关键是取得一个优良的输出变压器，否则深度的负反馈反而会造成听感上的缺陷。第六图是第七图的衍生，输出改为超线性接法，力度更好，输出功率更大。
第八图是经典的QUADII功放，输出级带阴极反馈，线路简洁
最后一个也是长尾倒相，只是管子不同，音色也不同，标准接法

Julien

<img src="attachments/dvbbs/2005-2/200522318616301.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/2005-2/200522318616301.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
[em12]

Julien

<img src="attachments/dvbbs/2005-2/200522317554946.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/2005-2/200522317554946.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-2/2005223175931419.gif" 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/2005-2/2005223175931419.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-2/20052231804925.gif" 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/2005-2/20052231804925.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-2/200522318236.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/2005-2/200522318236.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

Julien

<img src="attachments/dvbbs/2005-2/2005223174918677.gif" 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/2005-2/2005223174918677.gif\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-2/2005223175112472.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/2005-2/2005223175112472.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

<img src="attachments/dvbbs/2005-2/200522317548906.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/2005-2/200522317548906.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

<img src="attachments/dvbbs/2005-2/200522318316235.gif" 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/2005-2/200522318316235.gif\');}" onmousewheel="return imgzoom(this);" alt="" />

Julien

EL34和6P3P的图纸有，挺多的，我整理下就发上来，晚上过来看一下，保证多，呵呵
PP的机器关键在调整，必须两臂平衡，韵味才好，声音才细腻
[em12]变压器也是个关键，听味道是单端好，听力度是推挽好

Julien

这组38V绕组就是用来提供－30V的固定偏压的

qongtou

Julien

用交流供电只要你噪音能处理好就可以，不比直流差

qongtou

管子的灯丝可否改用交流供电，会有什么影响吗？

老瓜壳

收纳好贴

goodfly110

辛苦了
J版。。。

茹祥臣

小声问个问题，在第一张图里，那个6F2是不是国产的电子管？是否有常用的代换电子管？

很多时候大家评论很好的电路图，真要行动的时候到卖电子管的地方买不到相搭配的电子管，挺郁闷的。

taiping

这么多的PP机图纸，学习了。等有机会也做一台玩玩。

tfk

原帖由 茹祥臣 于 2007-9-3 16:37 发表
小声问个问题，在第一张图里，那个6F2是不是国产的电子管？是否有常用的代换电子管？

很多时候大家评论很好的电路图，真要行动的时候到卖电子管的地方买不到相搭配的电子管，挺郁闷的。

6F2是国产的电子管,就是常用的.代换ECF82和6U8.