All through hole components!
All IC's socketed!
All outputs have 2 screw terminals!
All outputs have LED status!
All inputs have 2 screw terminals!
All inputs have LED status!
The board pictured is setup for the Bridgeport BOSS early series stepper motor machines. I have a proto type board of this
design that has been in operation since 1991.
Spindle speed module ready to be potted.