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/diy/ - Do It Yourself

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>> No.1467186 [View]
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1467186

>testing a batch of chinese arduinos
>notice one of them has a crystal resonator without the cover

Every now and then I get one in a batch of 50 that will have this defect, yet it will work just fine. Why is it? Do they accidentaly lose the metal cover during the reflow soldering or something like that? Why do they still work?

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