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标题: 压电式耳机矿石收音机电路 [打印本页]

作者: liyf    时间: 2011-6-3 13:24
标题: 压电式耳机矿石收音机电路
压电式耳机矿石收音机电路,收音时,用C2进行调谐,天线接在A2上,可以改善选择性.







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