Home Forums GuitarPCB Build Support Dr. Phybes – 45/90 Mod Reply To: Dr. Phybes – 45/90 Mod


R16 and the SW1 provide the feedback bypass function.  When you install my 45/90 mod, you can still use the feedback mod when in 90 mode.  In 45 mode, the feedback function is bypassed.  You may eliminate the feedback loop by removing SW1 and R16 if you wish.