Karl, > Here is a interesting article written by Tom > Cantrell for cirquit cellar (issue 155, june 2003) > about using a "car chrash air bag IC" as a > "single chip Theremin"! got a link? > Quit interesting device in its own right the MC33794. damn, 8 fields! That mean not just 2 arials, but 8!! woohoo.. off to read some more. Paul