You also might want to checkout these two links:
http://www.stepperstuff.com/
http://www.sscnet.ucla.edu/geog/gess...s/steppers.htm

"larry d clark" wrote in message
. com...

i have always wanted to build a step motor driven
balanced tuner. i have acquired an excellent tx air capacitor
and 2 matched 28 uh roller inductors. next step is
to acquire 2 step motors with some kind of positioning
indicator, either optical or a pot.

any have any recommendations for a company site, or for
anyting else related, pulleys, belts, encoders etc

larry
kd5foy