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Here I have a late 1970s MXR Phase 90. The pot dates back to the 21st week of 1978. The infamous Phase 90 in great condition despite the blemishes. It gives it character. This is an awesome vintage pedal. Sounds out of this world.

I’ll throw in an adapter for free since there’s no 9v outlet.

Feel free to message me for any questions.

Here’s a more descriptive description from MXR themselves:

For more than four decades, the MXR Phase 90 has been a mainstay on the pedal boards of millions of players around the globe. This little orange box went on to become the sole icon of its effect category, and countless legendary riffs have benefitted from the sonic qualities of this pedal. No matter the genre or instrument, the Phase 90 has been there through it all to add its distinctly lush voice to a musician's tone palette. With the twist of the Rate knob, you can take the Phase 90's warm modulation from subtle, spatial shimmer to all-out high velocity swooshing.