A one-stop reference for anyone involved with electronic circuits - technician, hobbyist, or engineer - offering readers the specific circuits they need, through clear, illustrated descriptions that are conveniently grouped according to circuit function. Readers will get an understanding of how the circuits operate and fit into electronic equipment and systems. In addition, alongside each type of cirucit are testing and troubleshooting methods. Readers can put the ciruits to work immediately, using the detailed, proven component values provided. Or they can easily change circuit values to suit their own particular requirements following the handbook's detailed guidelines.