这种东西我个人建议直接去买成品，制作费用大于成品了
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引用 496464505:找不到卖的的说。
这种东西我个人建议直接去买成品，制作费用大于成品了
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谐振升压烧场馆，boost烧555（原谅我没有其他振荡器）
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引用 潜伏:我是学渣，求提示。
最不要用555，这东西不是电源上用的
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