free download Electronic Projects for Musicians book

How to build pre-amps, tone controls, ring modulators, mixers, and many other inexpensive electronic accessories. Written in simple language, with hundreds of clear illustrations and step-by-step instructions.

http://rapidshare.com/files/54883978/epm_070911.rar

verry good article for project regarding book, boost, cook converters with examples

http://rapidshare.com/files/54725678/SwitchingReg.pdf.html