Monthly Archives: February 2014

Phase 90 circuit board revisions

Now I’ve seen hundreds of MXR Phase 90s over the years and by far the most common request is for info on the “Script mod.” I’m certainly not an MXR historian but what I can offer is a first hand … Continue reading

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Expression Pedals and the Phase 90

  Adding an expression pedal jack to control the rate of an effect is a common request that we get for a variety of pedals. The Phase 90 is mentioned quite a bit but unfortunately it uses an uncommon potentiometer … Continue reading

Posted in Custom Shop, Favorites, Modifications | Leave a comment