Re: Unipolar or Bipolar?

Thanks Ballendo and Dave.

As I read and search in electronics stores, Linistepper is very easy
and cheap to repair if it blow up. Pic and transistors are very
common and inexpensive components.

For your recommendations and the above mentioned, I think go to
Linistepper.

Reprogramming possibility is a plus for future upgrades.

Thanks again,

German.

P.S. What is FWIW?