ext_32721 ([identity profile] randomdreams.livejournal.com) wrote in [personal profile] darkoshi 2015-04-03 04:50 pm (UTC)

It isn't. Wall voltage varies so they tend to make the supplies produce slightly higher voltage than they really need, and deal with it downstream, and unregulated or poorly regulated supplies, or switchers that rely on feedback from a loaded system, look just terrible when measured with a multimeter.

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