Originally Posted by
mactec54
The =10v+ / -10V you won't have unless you look for a power supply the has a -10v and a +10v output this will give you the FWD and Reverse you can switch between the two voltages, there are other ways to do it as well, but this is the simplest to get working, you can do this by using a wire wound Potentiometer
Well my power supply doesn't do neg. volts so that isn't going to work - in fact the whole concept of neg. volts confuses me. I guess a lab grade power supply would do - / + volts and I haven't one of those either!
You can also do direction change by using Step/Dir control or CW/CCW control
This implies some sort of PC / Computer control - again not in the realms of simple control that I require.