ken 发表于 2005-2-24 09:33

先请教一个问题

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 发表于 2005-2-24 09:04

多谢老大了!

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 发表于 2005-2-23 19:06

.

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 发表于 2005-2-23 18:36

补充点

图上的大多是进口胆管型号,换上对应的国内型号就行

Julien 发表于 2005-2-23 18:30

稍微解释下

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 发表于 2005-2-23 18:07

继续贴。。。还有点

<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="" />

Julien 发表于 2005-2-23 18:02

继续贴

<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 发表于 2005-2-23 17:54

先贴几张图

<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 发表于 2005-2-23 17:18

呵呵,对声音的取向挺重要的

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
变压器也是个关键,听味道是单端好,听力度是推挽好

Julien 发表于 2005-3-2 20:01

这图是标准接法,固定偏压

这组38V绕组就是用来提供-30V的固定偏压的

qongtou 发表于 2005-3-2 19:59

请问38V这组电源是有什么用的?

Julien 发表于 2005-2-28 22:20

整流可以用5AR4,同时变压器次级交流电压提高20V

用交流供电只要你噪音能处理好就可以,不比直流差

qongtou 发表于 2005-2-28 22:09

请问最后6L6那图如用电子管整流应用什么管,

管子的灯丝可否改用交流供电,会有什么影响吗?

老瓜壳 发表于 2007-9-3 11:09

:) 收纳好贴

goodfly110 发表于 2007-9-3 15:28

辛苦了
J版。。。;P :lol

茹祥臣 发表于 2007-9-3 16:37

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 发表于 2007-9-3 22:44

这么多的PP机图纸,学习了。等有机会也做一台玩玩。

tfk 发表于 2007-9-3 23:35

原帖由 茹祥臣 于 2007-9-3 16:37 发表 http://bbs.hifidiy.net/images/common/back.gif
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.
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