独孤九剑 发表于 2018-12-19 14:51
断开+B的保险电阻然后接上假负载
yang_5 发表于 2018-12-19 15:01
最好找的就是断开行推动变压器的任意一个脚就可以了,用14或16的针头套空就可以,不放心就搞2个悬空。行电 ...
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