Stepper motor constant current drive /
Palmer, J.(John),(Agricultural engineer),author.
Owen, G. M.(Gwilym Morris),1936-2010,author.
Fisher, R.(Ron),author.
National Institute of Agricultural Engineering (Great Britain).Scottish Station.
Unbound.
"Not for publication."--stamped on cover leaf.
Report dated September 1972.
Includes bibliographical references (leaf 3).
Stepping motors