Possibly goofy idea...

[tomg]

Hi Scott, paia made a programmable drum machine that used
these things. and if I remember they were just etched into the
board and the lacquered. I've got it around here somewhere
on paper. Maybe Anders has a pdf. Let me know if you 
can't find it and I'll warm up the scanner.

Tom


> Touch switches!  Didn't I read here that a CMOS gate input can
> work as a touch switch?  If so, are there biasing requirements?
> ESD protection things?  Output conditioning?  Could I make the 
> pads by etching a board and coating it with clear lacquer?
>