I am also very interested in making a couple of these cables. Making the connector is not very difficult, I have already made a few for the grip switches. Does anyone have the pin out and specifications for these cables?
We are at a point where we need the PC interface and will need to buy some new timing units if we can’t get the interface to work. I know I can get some from Harold Wood in Australia but they are very expensive and would need to order at least 5. It would be less expensive to purchase some newer units.