4843| 29
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自己买的稳压电源,2个TO-3的功率管没有电路板,想自己做一个。主要目的是想学PROTEL |
发表于 2020-2-22 16:55:08
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发表于 2020-2-22 17:50:52
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发表于 2020-2-22 18:40:29
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发表于 2020-2-22 18:42:46
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发表于 2020-2-22 18:55:02
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