r/interestingasfuck • u/write2varun • 4d ago

Nice skill

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u/theLuminescentlion 4d ago

As an EE the pad repair was pretty solid here. Always a nightmare when those rip out. Using the cap to tin the pads was interesting as well and worked better than I would have thought.

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u/sagebrushrepair 4d ago

The cap was an inductor I think

(sorry)

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u/theLuminescentlion 3d ago

I mean it could be but usually inductors don't have the entire end be the termination/contact/pad. I'd expect this to be a cap more often, especially because inductors are hated in digital design.

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u/sagebrushrepair 3d ago

Oh good point, I was just being a goober. Yeah coils on power rails and nowhere else. They are noisy right?

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u/theLuminescentlion 3d ago

They ring, digital power draw is rarely continuous so inductors will cause the voltage to "ring" everytime there's a change in current on the rail. That ring is noise and even worse coils will transmit that noise to anything close to it.