John McLaughlin

"As you can see there are three tube Pre-amps. In the rig itself you will see the Zen Drive which is what I recorded with recently, but above you will see the Seymour Duncan Twin Tube which I also like very much, and to the right one of my oldest favorites, the Mesa-Boogie V-Twin. I like them all and it really depends on what mood I’m in which one I use.In the middle of those two, you will see a prototype of the new wireless midi for guitar that was invented by Andras Szalay, and is distributed by Fishman Associates.The rig itself is self evident and needs no commentary from me other than it stays the same whichever pre-amp I use." - via John's personal website

"As you can see there are three tube Pre-amps. In the rig itself you will see the Zen Drive which is what I recorded with recently, but above you will see the Seymour Duncan Twin Tube which I also like very much, and to the right one of my oldest favorites, the Mesa-Boogie V-Twin. I like them all and it really depends on what mood I’m in which one I use.In the middle of those two, you will see a prototype of the new wireless midi for guitar that was invented by Andras Szalay, and is distributed by Fishman Associates.The rig itself is self evident and needs no commentary from me other than it stays the same whichever pre-amp I use." - via John's personal website

At 4:13 you can watch John McLaughlin's pedalboard, which includes the MXR M134 Stereo Chorus

At 4:50 John McLaughlin says about the MXR Carbon Copy Delay: "It is really nice on the clean sound"

John McLaughlin utilizes the Dunlop DC-Brick Multi-Power Supply in his setup, as detailed on his official equipment page by blondsummer. His rig features a variety of pre-amps, including the Zen Drive, Seymour Duncan Twin Tube, and Mesa-Boogie V-Twin, indicating his preference for versatile sound options. Additionally, McLaughlin incorporates a prototype wireless MIDI system for guitar by Andras Szalay, distributed by Fishman Associates, showcasing his interest in innovative technology.

In this photo of John McLaughlin's pedalboard you can the Zendrive2

In this photo from John Mclaughlin’s concert Line6 Hx stomp can be clearly seen.

John McLaughlin uses the original Korg Pitchblack pedal, as evidenced by its presence on his pedalboard next to the Zen Drive pedal, according to the source provided by John McLaughlin's website.