View Mxr Evh Phase 90 Schematic Pictures. The circuit is designed around a phase shifting stage with an input buffer to avoid tone sucking. The resistor you pull to get rid of the feedback (and change the sweep) is the red 22k at the top of the schematic.
How does the evh phase 90 compare to those other ones?
We have 18 mxr diagrams, schematics or service manuals to choose from, all free to download! The mxr phase 90 is one of the most exquisite pedals in the guitar universe. As usual, has the same quality and built like a tank ruggedness i have become accustomed to with mxr. This one includes the script mod on a switch so you can choose either mode.