1W27ohm电阻是做什么的？

The  principle of operation is as simple as the circuit itself: When power is applied, the transistor will conduct the current allowed through resistors R1 and R2 into the flyback primary, causing it to induce a current on the secondary, and, at the same time, on the feedback winding. This feedback current will trigger the transistor to stop conducting, and as the magnetic field in the ferrite core collapses, a large HV spike will appear on the secondary windings (basic inductor action). But now there is no feedback current to keep the transistor off, so it will once again conduct, and the cycle will repeat, at a natural frequency that puts the transformer in resonance, resulting in enormous voltage gain. One of the advantages of having a feedback winding is that the circuit becomes dynamic: The frequency of operation is automatically adjusted to resonance, depending on many factors. It is interesting, because you can actually hear the frequency change as you draw an arc (high loads drop the frequency to a high pitched 20Khz whine which than becomes ultrasonic as the arc grows).

2N3055基极串联一个快速二极管FR107（普通1N4007也行）防止b-e反向击穿，输出电压更高
R1要略减小

另外可5W的电阻可用电阻（电阻功率不能太低)并联电容（无极性的）代替，以前我这样做过的确比单用电阻好。

另外楼主是几寸的高压包？

共集级三极管的连线方式.好像放大倍数不高的.

谁能告说我那个1w 的电阻是做什么的？

6P   .....玉足................orz.........

楼上什么意思？我没看懂。

21寸的高压包

串联FR157可以不？

串fr157我试了效果很不好，电弧长度减一半

串个耐压地的fr157耐压1000v
用1N4001可能行

真象放P的声音

你把行输出里面那个高压硅堆给想办法去掉效果会更好。

这个怎么去掉啊，高压包环氧树脂封了拆不开，我怕拆坏，拆完了卖相也难看

电阻要重新调

引用第11楼bomb于2009-07-23 18:19发表的  :
串fr157我试了效果很不好，电弧长度减一半

关心耗电量，有没有2A？。。。。。。。。。。。。？

引用第16楼223388于2009-07-24 16:37发表的  :
我的29寸的高压包电弧都到7cm了二极管还没击穿。

7CM. 70KV ? 你的电路是怎么做的,初级线圈多少砸,有没有详细的说明 啊?

Can you speak chinese?
操作原理是【9130】，这条赛道本身：当通电时，晶体管将进行电流允许通过电阻R1和R2为反激式小学，从而导致促使对目前的中学，并在同时，在反馈绕组。这种反馈电流的晶体管触发停止进行，并作为磁场铁芯倒塌，大型高压尖峰会出现在二次绕组（基本电感行动）。但现在有没有反馈电流来保持晶体管关闭，所以它会再次conduct，以及该周期将重复，一种天然的frequency that把在谐振变压器，于丰厚的电压增益resulting。对有反馈绕组的好处之一是，该电路变为动态：工作频率自动调整到共振，这取决于许多因素。有趣的是，因为你其实可以听到频率的变化，你画一个弧（高负荷下降的频率20kHz的高音调抱怨不仅限于成为电弧超声的增长）。