自制活动矿石的方法

pengxn2003

来源:《无线电》1958年第3期21页 陈瑜
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mldog

好资料。可惜矿石不好找。

心想事成16588

进来学习

jzm

问个问题，这是知道矿石在矿石收音机里是检波用的相当于二极管，为什么还要活动的。