4748| 23
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用数字功放板做了一个数字功放 |
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点评
开关电源的质量很关键,质量差的电源肯定存在这样的问题,我用 LS(立信)开关电源,这电源质量你从它的屏蔽就能看出来(全紫铜包裹),你的是双电源吗?
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