Guitarist Alex Turner uses the Hughes & Kettner Tube Tools Tube Rotosphere MKII during Arctic Monkeys Favourite Worst Nightmare era. This Pedal can famously be heard during the “Teddy Picker” solo. Pictured on the right of Turners pedalboard next to his TS808 on the left hand side of this picture.

The Hughes & Kettner Tube Rotosphere II summons true Leslie tone in a hefty, steel-faced pedal through features like fast and slow modes, a rotor balance controls, and individual knobs for drive and output. Built on the foundation of an actual Hughes & Kettner 12AX7 vacuum tube which is visible on the front, the second iteration of the Rotosphere introduces a guitar/keyboard switch on the top which allows for wholly separate impedance and EQ settings.

The Rotosphere offers two rotation speeds and fine harmonic tube distortion generated by an ingenious high-voltage tube circuit. The Rotation simulations can be heard on the bands second album.

"The Rotosphere he just likes to add for color. It's not really a primary part of his tone, but he likes to kick that in for the big Leslie kind of sound. It only comes on every once in a while. There's not a set tune that it's on. He'll kick it in during a solo just because and then he'll kick it in a place where you wouldn't think that it would be," says Jeff Beck's guitar tech.

At 30:30 of this "Rig Rundown" with Premier Guitar, Mike Hickey, Joe Bonamassa's guitar tech, points out that the Hughes & Kettner Tube Tools Tube Rotosphere MKII is in the loop of the system.

Pictures of Mike McCready's pedalboard show a Rotosphere.

Mike Einziger uses the Hughes & Kettner Tube Rotosphere MKII, integrating it into his setup with the signal coming from a Korf DTR-1 Rack-Mounted Tuner and leading to a Boss PH-2 Super Phaser pedal. This setup detail is documented on the Tripod page titled "Mike's Equipment."

In this Rig Rundown, Kim states he runs a Rotosphere through the effects loop of his Mesa/Boogie Electrodyne.

George has a rotosphere on his board live when I saw him two separate times. The above link also shows his rotosphere on Instagram on his page.

At 3:07 in this "Rig Rundown" with Premier Guitar, Brian Farmer, Warren Haynes' guitar tech, points out a Hughes and Kettner Rotosphere while outlining Warren's pedals.

As spotted on his pedalboard, Doyle Bramhall II is using this effect.

In a photo shared by Christian Bland on Instagram, the Hughes & Kettner Tube Rotosphere MKII can be identified by the distinct MKII lettering, indicating its use during the ONEMINUTEAFTERPROJECT at Levitation France 2014.

Then there’s my Lexicon MPX G2, which is a greatsounding unit by not very well thought-out; it has 300 presets but only 50 user presets—great idea, guys. I still have my Roland GP-16s, and I also used the Hughes & Kettner Rotosphere quite a lot, as well as the TC Electronic 2290,

Used for "simulated Leslie sound", as he said at 4:34 minute mark.