搜索 - 科创

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这个我想问大家一个问题啊，做LC振荡中如何补充电容中损失的电荷啊？就是如何自动给电容充电而不影响振荡？.......谢谢啦

完整拆下来，振子，变幅杆，输出头。网上查了下，变幅杆和输出头好像是钛合金卖1800元，不包运。先款。支付宝13682273022，户名宋秀梅，电话13570280138。

带有数字频率计的，目前是旋钮有接触不良的情况，现进一数字的，这个给淘汰下来了，因为有点毛病，所以低价出，100块，不含运费，现在没拍图片，晚上回去上图片

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