analog echo Watch The Edge Demonstrate How the Electro-Harmonix Deluxe Memory Man Helped Define the Sound of an Era As U2’s echo-laden ‘The Joshua Tree’ album turns 35 this week, we take a look at the guitarist’s most important delay pedal. Here's How the Watkins Copicat Tape Delay Helped Define the Sound of an Era Adopted by Hank Marvin and the Shadows this classic echo unit was the first – and some still contend, best – of its kind. Get The Pick NewsletterAll the latest guitar news, interviews, lessons, reviews, deals and more, direct to your inbox!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1Win tickets to see Dweezil Zappa in San Francisco2David Cassidy on seeing Hendrix, learning from the session guitar greats, and jamming with Paul McCartney and John Lennon3Martin and Reverb unite for an exclusive non-cutaway Grand Performance acoustic4Matteo Mancuso pays homage to his hero, Paul Gilbert, with new track, Paul Position 5Joe Satriani’s custom Eddie Van Halen-flavored 3rd Power amp is now available as a plugin – with real amps on the way