VOLUME 2, ADVANTAGE AND DISADVANTAGE IF STEP MOTORS, ; CHARACTERISTICS ; APPLICATION, SOLENOID-RATCHET; VARIABLE -RELUCTANCE; PERMANENT ; ELECTROMECHANICAL; ELECTROHYDROLIC' MATH MODELING, DRIVE CIRCUITRY, SUPPRESSION DRIVER, TESTING, DAMPING, CLOSED LOOP, SPEED CONTROL, COMPUTER , DESIGN, 5 PHASE, MICROPROCESSOR CONTROL,