Thanks - very helpful. I was concerned about disturbing the multiplier inputs too much and taking this away from the known quantity that is the Cadet X, but I’ve made the changes you suggested. I did also include the 1K resistor pairs from the input buffer to each multiplier section that you had earlier included.
The output of the 4th multiplier needs to be inverted according to Derek’s diagram, hence the slightly different configuration there in the output section. I did change the resistor values per your suggestion.
I’m in agreement with Derek - happy to make the fruit of the project openly available to anyone that can use it, and very much appreciate the help here in getting this off the ground.
(image edited with updated annotation and then again for bypassing)
