Could someone recommend some decent electronics books? I want to build things like power supplies, touch sensors, and other doo-dahs, but am having a hard time finding a book at the right level of detail. I don't really care about the quantum theory behind how a PNP transistor works, I just want to know how to use it. On the other hand, I'm a programmer so I really don't want to wade through chapters of "zero is off, one is on."