发布时间:2025-02-06 06:47:37
中国常见的三段稳压就是7805,7806,7809,7812和同样的79开头系列,其他的,尤其是C开头,一般是三极管
还有LM317
741在中国简单的电路里不怎么常用,因为外围元件多
请问有住在南昌万科城三期的有个朋友欠我钱打电话不接上次我去他家保安不让进请问怎样能进去
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