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A comment on Ask HN: Why is coil whine in electronics so prevalent?. Parent comment

Re:Ask HN: Why is coil whine in electronics so prevalent? by Waterluvian on Sunday November 06, 2022 @06:25PM (#33498732)
Depends what LEDs you’re talking about. Christmas lights are really bad. They’re worse at 30hz because it’s cheaper not to rectify the AC current so they only chooch half the time.
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