Jethro Tull's guitarist for forty-three years and the author of one of rock's most-voted-for solos, played on a rig with almost nothing in it. He met Leslie West after Benefit, bought a 1958 Les Paul Junior the way he says everyone who met West did, and cut essentially all of 1971's Aqualung on it -- one P-90, one volume, one tone. The amps were Hiwatts, which the whole band was using, with a homemade treble booster in front because the Hiwatt had no front-end overdrive of its own; Barre's description of the box is a couple of capacitors and wires, and by his account it picked up radio stations along with the guitar. The exceptions on that record are worth knowing: Cross-Eyed Mary is a tiny unbranded amp he bought for two pounds, and My God is a small Fender Super.
Dotted eighth notes, analog repeats, and the delay settings that define U2's guitar sound. Plus how to set it up on your modeler.
The complete SRV Helix preset guide. Amp model, drive settings, and the secret sauce that makes it sound like Texas.