I designed this test fixture to ensure that each HB-25 that was manufactured, functioned normally before being sent to customers.
(https://savagecircuits.com/wp-content/uploads/2006/05/HB-25_Tester_06.jpg)
CLICK HERE TO GO TO THIS PROJECT ON THE SAVAGE///CIRCUITS WEBSITE (https://savagecircuits.com/hb-25-motor-controller-tester/)