搜索 - 科创

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我这有张古老的主板线切割用的 z80处理器上面都是插的集成电路有三个z80 分别叫z80cpu z80pic z80cic 还有两片集成电路ram 两片rom是紫外线擦除的

可以啊，问题就是能不能找到正确的频率。特斯拉的专利里面有两个，一个叫Steam engine，另一个是RECIPROCATING ENGINE，都是和弹簧有关的。似乎用到了共振的原理。

引用 rb-sama:为什么必须要用PNP型三极管来做？并不是必须用pnp来做，有一些性能特别优秀的音频功放管是pnp管，在npn管里找不到那样参数的....

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