哈哈,钳版,我的1541也到了
咋天正和狂之又狂兄聊紧,邮递员就送单到了。
我还用摄像头照了一下邮递员给狂之又狂兄看,俾其也BS一下他
小电感我用DL6243测为1.48mH,大电感为3.51mH,还算正常吧?
马上试!
也回敬你一句
牺牲一下吗!你有条件试!大家都等着呢!啥问题?
以下是引用HQ在2004-12-7 23:50:00的发言:我估计就是胆的高压和灯丝电压问题!
昨天,公司忙,没有试变压器屏蔽,晚上再试!
你中意搞搞振鸦嘛
现在噪声都未搞妥
搞乜嘢PMD100啊<img src="attachments/dvbbs/2004-12/2004128115534537.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/2004-12/2004128115534537.gif\');}" onmousewheel="return imgzoom(this);" alt="" />还不快下手.
哈哈
7220不过隐,我有只PMD100文蕉老兄:
不如加快SAA7220P/B数码滤波器玩下仲实际D啦!!明天把单位的示波器偷回来,看看波形就知道罪魁祸首了
他肯定还有其他问题.
也请教老大
那土八路把电感屏障了为何还有?...
变压器漏磁干扰电感!!!这才是罪魁祸首!!!!!!!!!!!别拍啦
以下是引用HQ在2004-12-7 23:24:00的发言:小弟佩服
你想我做炮灰吧
现在我已经换10V绕组供灯丝
以下是引用飞过海在2004-12-7 23:02:00的发言:实测灯丝有6V正
文招老兄心口有个勇字.
小弟佩服既然这样还不行,不如抬高灯丝电压试试!
。
今晚又试在6N11灯丝中加入中点平衡电位器,先断开原滤波电容的接地点<img src="attachments/dvbbs/2004-12/2004127224353146.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/2004-12/2004127224353146.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />还真不舍得下刀
然后在6N11的4,5脚和地之间接入3WB100电位器
<img src="attachments/dvbbs/2004-12/200412722494143.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/2004-12/200412722494143.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
用心慢慢调整平衡点,收益不大
正规是要的
以下是引用wongkm33在2004-12-7 15:44:00的发言:我看整流胆虽不致即死,命也许不长吧。既然这样改噪音会减少,不如改成稳压供电重更加好。
但我为了方便,没有加
再说5元一个的6Z4少说也能用一年吧