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I believe this is a simple question. I would like to know the basic difference in linear and switching power supplies and the pros and cons of each. Thanks in advance.

Thanks for the information.

I live in Northern Utah. Two years ago I had a new drive way poured and some sidewalk squares replaced. Last winter one section of the driveway began to rise. I called the contractor, he came out and said it was frost heave and would go down when it warmed up. It did so I didn't think...