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Old 29th Apr 2020, 6:39 pm   #5
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 19,774
Default Re: Power supply QRM shielding

You'll probably find a nice virgin area on the PCB ready for X and Y capacitors, and a pair of links where a common mode choke ought to have been. Probably was on the one sent for testing. Fitting these ought to be a start. Adding a big ferrite on the output wires might help as well. 1 per connector.

David
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