Is there a typo in the schematic, or is it just my ignorance showing early in the morning?
The cap to the left of 4N37 is labeled 10K. Should that be a 10K resistor? Or is it 10uF cap? I notice one of the two 10uF caps on the right is listed as 10K as well.
well , in this moment it seems it'll be either slightly Babelfished iteration of what you did show in BAF 2015 lecture ( with input buffer implemented in biasing, servo - still thinking about) , or it'll be some big bstrd with inductive load
however , no hurry ....... pleasure is in entire glass of wine , not just final felling in da belly