A very cool link. Too bad I hadn't seen this device a bit sooner, since I just completed updating an old DVDT/positioner design!!! Oh well, someday it will need another update.... Chris > have a look at an > application note on this site. > http://www.anadigm.com/data-library.html and look for AN004, -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics