Hello All, Here are a couple of starting places for info on "lots and lots 'o stuff". "http://www.ee.washington.edu/eeca/text.html" Electrical Engineering Circuits Archive (Washington) "http://www.eklektix.com/gfc/elect/" FC's Electronic Circuits (EKLEKTRIX) "http://www.hut.fi/Misc/Electronics/" Electronics info page (Tomi Engdahl - Finland) "http://www.siemens.de/Semiconductor/products/37/379.htm" List of Application Notes (SIEMENS) And here is an ftp site I have found very good. It's big and much faster for me than the USA based sites. Check it out. "ftp://ftp.urz.uni-heidelberg.de/mirrors/" "http://ftp.urz.uni-heidelberg.de/ftp/pub/" Bill