Building boards from scratch always sounds a lot cheaper than it is. You'll find it hard to build any kind of electronics for less than $126 5. The manufacturing cost almost always exceeds the component cost, and you always needs l    lots of little components that you didn't think of at first (miscellaneous glue logic, power supply, enclosure, etc.). ------------------------------------------------------------------------ Stuart W. Card, Consultant, Card & Associates -- Research & Development Box 153 RR 1 Newport Rd Utica NY 13502 315-735-1717 / FAX -8469 swc@uc1.ucsu.edu or cards@top.cis.syr.edu "Who is John Galt?"