with the 4 layouts proven in the image, the best left demonstrates R9 twice instead of R10 (which is Okay, due to the fact R9 is 1k and R10 is one.5k so it does not make any big difference),but R11 and R13 are swapped which doesn't do the job in the least for Q1 (best correct structure appears to be superior, however).Para ajudar a encontrar as mel