Ask HN: Why is coil whine in electronics so prevalent?

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I'm talking about the whine, buzzing and similar noises. Here's an explanation of how they happen: .
Now, I've heard of some simple DIY remedies that work, like putting glue in/around the inductors.
So, I want to know why this doesn't get properly fixed in the manufacturing process. Because nobody cares? Is it too costly? I wouldn't mind paying a small price premium for a product if there was a guarantee of no coil whine.



Comments URL: https://news.ycombinator.com/item?id=33497424

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