Just about everyone involved in electronics has experienced the frustration of searching for the particular power supply, temperature control circuit, or audio power amplifier circuit that exactly fills a need. The Encyclopedia of Electronics Circuits, Volume 1 has changed all that. Volume 1 of this outstanding pair includes more than 1,300 individual circuits, divided into nearly 100 categories. Tinkerers and hobbyists will use the book to find fun-to-build and useful circuits for their projects. Professional design and development engineers will find the book as a wellspring of good ideas and information. Everyone will consider it to be an indispensable part of a good electronics library.