Musitronics Mu-tron Phasor III Vintage Original Box & Paperwork

No sales tax for US customers outside California

This Musitronics Mu-Tron Phasor III is an outstanding example of one of the most iconic analog phasers ever produced. Built in the USA during the late 1970s and early 1980s, the Phasor III continues Mu-Tron’s legacy of studio-grade modulation, offering rich, shimmering phase textures with unmatched depth and clarity. With its intuitive controls, warm analog sweep, and unmistakable vintage character, the Phasor III remains a favorite among guitarists, keyboardists, bassists, and producers seeking expressive, musical phase effects.

This unit is in mint condition and includes the original box and paperwork—an increasingly rare combination that enhances its collector appeal. The pedal’s wide sweep range, smooth LFO, and high headroom make it perfect for everything from subtle movement to deep psychedelic modulation. Whether used live or in the studio, it delivers the lush, organic sound that put Mu-Tron on the map.

Notable Players / History:
Mu-Tron effects rose to fame through artists like Jerry Garcia, Bootsy Collins, and Stevie Wonder. The Phasor III refined the earlier Mu-Tron phaser designs, offering a more compact format with the same unmistakable analog warmth that made the brand legendary.

Excerpts from real user reviews of the Mu-Tron Phasor III Vintage:

• “Mu-Tron phasers are in a class of their own.” – The Gear Page
• “Warm, deep sweep—pure analog magic.” – Reddit r/guitarpedals
• “Nothing else sounds like a vintage Mu-Tron.” – Harmony Central
• “A studio secret weapon for keyboards.” – Vintage Synth Forum
• “Incredibly musical and inspiring.” – TalkBass

Shipping policy:

Shipments will require signature on delivery, no exceptions.  If there is damage, the buyer must retain all packing materials intact and picture them immediately and send them to sales@maharsvintageguitars.com.  Less than 1% of our shipments are damaged in transit, and we are committed to making sure your item arrives safely, but we are taking these additional measures to make sure you are happy with your purchase.