Sam Morgan wrote:

why not kill 2 birds with one stone?
for about $200.00 u can get the The Electroluminescent Receiver Kit
http://www.pan-tex.net/usr/r/receivers/
its a kit that is designed to be a teaching platform and the pads are
large enough to allow for multiple remove this and try that type mods.
$60.00 of that price is a digital read out.

sorry, I forgot this part:
http://www.pan-tex.net/usr/r/receive...nstruction.htm
the "General Information About the Boards" is what sold me on the unit
there is so much info all scattered about on that site that it took me a
while to find that part