From EVH to Auerbach, Joe Perry, and Vai—37 Boards You''ll Drool Over.
"This is Waters' original Pete Cornish-built board that was built for him just before the original Wall album in 1980. It's kept in the back and controlled by his guitar tech. While he used to use the phaser and echo, he now primarily uses the Bassballs circuit as the delays are controlled via rackmounted TC Electronic units. "