It doesn't happen often, but it does happen sometimes. Repairing the next power supply, as usual, removed the board from the case and heard that it was whistling loudly. And it looks like the attendant is whistling. I changed several radio components due to which this can happen, but the whistle did not stop. It turned out that the reason was completely different and the "malfunction" is very simple and banal.
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Негізгі бет Ғылым және технология Microlab PSU 360w power supply board whistles
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