Appologies to HobbyCNC

I had incorrectly listed HobbyCNC's driver board as a bi-polar
chopper when it is correctly a UNI-polar and CHOPPER style.

Dave advised that it handles up to 44 volts so I also corrected that
in the links section under driver cards.

Hope no one get the wrong information.

Here is the correct data :

HobbyCNC - UNI-polar
CHOPPER style Uni-polar, 3 amp 44 volts
http://www.hobbycnc.com/driverboards/driverboards.htm

Dave