09-06-2015, 12:33 AM
The way you have the .5 drawn there in the last illustration shows it is being used as a substitute for the .1 labeled as #23, as a bypass condenser on the 400ohm R24. I would imagine changing the .1 in the block to a .5 would have much the same effect, also, it should work fine with the original values. Make sure the grounding of that .1 is good, that could be part of the problem.