The resistor you pull to get rid of the feedback (and change the sweep) is the red 22k at the top of the schematic.
View Mxr Phase 90 Schematic Diagram PNG. The script version of the phase 90 is probably the holy grail of phase shifters and was the first effect released by mxr in 1973. The last output mixer stage will combine the.
MXR Phase 90 Script Reissue | Reverb from images.reverb.com
The mxr phase 90 schematic can be broken down into 5 simpler blocks: We chose to use this layout since the 741 ics seem to be part of the magic sound of the old script logo version. First let me state for the record that though i have often heard of and read about the mxr phase 90, the brand name was not on my list of coveted vintage pedals to own.
This is the original mxr™ phase 90™ phase shifter (script logo) replica known as p90.
In 12 short minutes i. Description phase shifter, jfet based. The following circuit is the original mxr phase 90 version. Quality is usable, but not perfect.
