In an interview with Guitar World, he mentions he picked up his first Phase 90 in the mid-70s, so it could have been either version. This version featured a less dramatic sweep than its older brother, hence the name.

What is a Phase 90?

The Phase 90 takes you from subtle, spatial shimmer to all-out high velocity swooshing with the twist of a knob. This pedal can be powered by a 9-volt battery, a Dunlop ECB003 9-volt adapter, or the DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies (not included).

How many stages is a Phase 90?

four Designed by Barr and released in either 1972 or 74 (sources vary), the Phase 90 is a four-stage phaser, since it has four independent stages at which the signals phase is reversed, resulting in two modulated frequency notches.

When did the MXR Phase 90 come out?

1974 The Phase 90 was the first pedal sold by MXR and helped launch the company in 1974. The original model had a simple orange enclosure with a script style MXR logo. In 1977 MXR changed its logo to a block style.

How does a phase 90 work?

MXR Phase 90 Circuit. The LFO creates the sub-sonic carrier signal that modulates the notches, shifting them among the frequency band. The MXR Phase 90 modulation is controlled by one knob which set the speed of the effect (frequency of the LFO).

Is MXR Phase 95 true bypass?

A script switch is also onboard to toggle between feedback-aided modern and feedback-removed vintage styles, while a speed knob adjusts the rate of the swirl. The pedal boasts true bypass switching and 9V power supply operation from the included adaptor, too.

What goes first flanger or chorus?

Traditionally you want your phaser first, then flanger and chorus in whatever order after that. But theres nothing wrong with putting your chorus first and phaser last. Thats how neat sounds get created.