/diy/ - Do It Yourself

>>1275460
Ah, now I get it. Remove the transistors corresponding to Q7/Q9/Q10 on Pic related. You only need one feedback transistor on the outputs, and the rest work in slave mode. You will need to reduce the resistance corresponding to R12 on Pic related as you add more channels, but now it should be more proportional.
You never did say whether you had characterized your real parts, which almost certainly differ from the parts in your vidya and from one another.