如何判别晶体管类型，和三个电极分别是哪几个角？ 电路中三极管类型和三个电极怎样判断？（根据已知的三个电极电流...
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首先比较三个电极的电位，`中间的就是基极b，然后找出与基极相差0.2~0.3v或0.6~0.7v的那个极，就是发射极e，剩下的就是集电极c了。
Ube是0.3v的是锗管，Ube是0.7Ⅴ的是硅管。
发射极e电位比基极b电位高的，就是PNP型。
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