As seen in this picture https://pedalmaniacs.wordpress.com/2011/08/28/da-auerbach-the-black-keys/

Used on The Great Southern Treadkill, as stated in this June 1996 Guitar World interview.

You've got a huge pile of effects boxes in the studio. Aside from the ones you've already mentioned, what other units did you use?

I hooked up my MXR Flanger/Doubler every once in a while and I used an E-Bow for a real smooth, continual sustain on "10's." I also used one of those little Korg Pandora boxes for a weird, fluttering sound on a short passage in "10's" and a Lexicon Vortex for the shimmering, breathy tone on my theme-like lead in "The Underground in America."

I also used a Roland AP-2 Phase II pedal, a KorgAX30G, a Digitech Whammy pedal, of course!, a Boss CE1 Chorus and a bunch of old Electro-Harmonix shit -- a Small Stone Phaser, an Electric Mistress Flanger/Filter Matrix, a Little Big Muff and a Soul Preacher Compressor/Sustainer. I also used a Korg G1 on the demos and some of that made it on the record. If l can't beat a part of the demo we'II just extract that small section and use it. The G1 is a bad-sounding little unit, man.

There's some wah on the record, too.

Shit, I almost forgot about that! I used my Vox Wah on the earlier part of the recording and then Jimmy Dunlop sent me one of his rack-mount units [Crybaby DCR-1SR]. Man, that thing is incredible, you can literally get whatever you want out of it. I also really like the idea that you can run a bunch of Wah pedals all over the place on stage with it so you're not always tied to that one spot. The only uncool thing about it is that Rex [Brown, bassist] will be dicking me off every night 'cause he'll be jumping on my pedals all the time!

The V2 can be deduced from the eras of the Electric Mistress, the Little Big Muff Pi and the Soul Preacher.

Steven Wilson's pedalboard, showcased by Premier Guitar on Instagram, includes the Electro-Harmonix Small Stone Phase Shifter V2.

On the photo of James with his Gibson Flying V, EHX Small Stone (Version 2) can be seen taped to one of guitar's horns.

I used a lot of pedals like the Electro–Harmonix Small Stone phase shifter to create the modulations and delays, and for the remake I had a pair of Revox B77s for tape delays. Actually, I would say that 40 or 50 percent of the music is coming from the Revox machines, because I was quite extreme, by having a signal direct on one side and delay on the other, almost at the same percentage.

The pedal was later gifted to Matt Berry, who references the pedal in 2020 Sound on Sound interview.

He is also an avid pedal collector; the Small Stone Phase on the upper tier of his pedalboard was a gift from Jean‑Michel Jarre, who used it on his seminal Oxygène album.

In 2018 podcast Bonus Episode: The Sounds of Oxygene, Jarre explained the use of Small Stone.

What I did was I used some pedals from the guy from Electro-Harmonix. He created some fantastic pedals, such as Electric Mistress or Small Stone. You have different versions of Small Stone, which is interesting in the electronic music. (...) The number two has a story. The real sound of "Oxygen" is when the 9V battery is slightly used. When you go down to 9 volts, it has this silky, kind of phasy sound that makes it so soft. You can hear the battery when it is totally new, then it sounds a bit harsh.

Listed on Reverb.com in November 2020.

Mentioned in the February 1977 Guitar Player interview "Larry Carlton" by Steven Rosen and in an interview included in Volume 34 of Keyboard.

The guitar is always wide open (volume and tones on 10) and controlled with a Sho-Bud pedal, while other pedals, used primarily for 'live' shows, are an MXR distortion unit (heard on 'Spiral', a track from the Crusaders' LP Those Southern Knights), and an Electro-Harmonix Small Stone phaser (on 'Keep That Same Old Feeling', one of the band's latest singles). The Sho-Bud is employed for rhythm shadings and set all the way down to give the guitarist his solo peak.

Canton also has a complete line of phasers, compressors, and fuzzes, but uses them only when a song calls for a specific effect (as on 'Spiral', where the MXR is barely turned on to blend with the sound of the amp). When devices are used, Larry changes his amp settings to compensate for the loss in highs.

Keyboard, Vol. 34

When I was working with Billy Joel on The Stranger, I started invading all the music stores looking for a [Electro-Harmonix] Small Stone phaser. The whole Fender Rhodes sound [on "Just The Way You Are"] is that.

In this pic of his pedalboard (in de 'Volkskrant') a V2 Small Stone is visible

Pictured in this December 2020 Sound on Sound interview.

For electric pianos and organs, Matt Berry favours his Orange and Fender guitar amps. He is also an avid pedal collector; the Small Stone Phase on the upper tier of his pedalboard was a gift from Jean‑Michel Jarre, who used it on his seminal Oxygène album.

Used by Ace around 1999 according to this GuitarGeek diagram.

In a photo, John Hassall has the Electro-Harmonix Small Stone Phase Shifter V2 on his pedal board, confirming its use.

Mantar shared a large assortment of pedals on their Instagram.