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I need some ideas for how to switch a 110 source with a 12 or 5 volt from a pc. Something that will turn on the 110 when the pc is powered up. Also which leg of the 110 would be best to switch? And how many amps would the relay need to be in order to handle about 20 watts worth of appliancses? thank...

Now this is purely theoretical but I was wondering does anyone know where one would find info on creating this type of circuit? I am thinking you would just need to produce "pink noise" at operational frequencies but need better info.. Thanks all