George Harrison

George Harrison used the Maestro Fuzz-Tone pedal during the recording sessions for the first two Beatles albums, including "With the Beatles." This information is detailed in the PMT Online article, "The Beatles Effects Pedals Guide."

In a post by harrisonarchive on Instagram, George Harrison is shown with a Maestro PS-1A Phase Shifter, highlighting its use during the Extra Texture promotional period.

Used during Let it Be and Abbey Road sessions.

Silicon grey fuzz face

In a photo from the rehearsals for The Concert for Bangladesh, George Harrison is associated with the Univox U-915 Uni-Vibe. Although he did not use the Uni-Vibe during the actual concert, its sound can be heard on the track "Sunshine Life for Me" from Ringo Starr's 1973 self-titled album.

Used on Live in Japan

Used on Live in Japan

During the 1991 Japan tour with Eric Clapton, George Harrison used the MXR M102 Dyna Comp, as documented by Bekkoame.

George Harrison used a Vox Instruments Volume Pedal, which John Lennon had previously used with their Continental Organ. This is depicted in Robert Whitaker's 1965 photograph, "Beatles At The Donmar."

Used on Live in Japan

In a photograph from the Beatles' 1965 UK Tour rehearsals, a Vox Volume Pedal can be seen, which George Harrison later used on songs like "Wait," "I Need You," and "Yes It Is."

At 0:00, George Harrison uses a Boss TU-12 to tune his guitar in this video. There are several similarly shaped models in the Boss TU series (TU12H, TU12EX, etc), but based on features such as button placement and text position, as seen in this video, we can conclude that it's TU-12.