Ray Butts EchoSonic amps of the 1950's with its slapback echo sound was used by Scotty Moore, Carl Perkins, Chet Atkins, Luther Perkins (guitarist for Johnny Cash) and Roy Orbison.
The Echosonic was designed and hand-built by Ray Butts. While only 68 ever being built, the Echosonic found a unique place in history with a built-in tape echo (loop) unit. This patented tape loop echo system was one of the first guitar effects ever built, permanently installed in a high-quality custom-built guitar amp and speaker cabinet combo.
Vintage tube-powered echo effects include the Fender-distributed EccoFonic, Mastro Echoplex, Watkins/WEM Copicat, Binson Echorec and Meazzi Echomatic. You can hear Hank Garland play the opening phrase of Patsy Cline's "I Fall to Pieces" with the EccoFonic.