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 LATEST ARTICLES1Soccer Mommy’s Sophie Allison on the value of chord knowledge — and why 20 layers of guitars is too many2David Gilmour talks soloing in Guitar Player's guide to the Greatest Guitar Solos of All Time3"It's a very weird situation, and I don't think I'll ever understand it." Guitarist K.K. Downing updates his status with Judas Priest as he tells the story behind the song that defined the group's heavy-metal image 4The world’s first seven-string Fender Stratocaster is here5"It's great. I dig this!" Watch Eddie Van Halen compose "Amsterdam" on a Charvel guitar in an unearthed home video from 1987 — eight years before the song's official release