Yo everybody, theres this crazy tapping scraping thing that Eddie Van Halen does at the start of the song "without You" it sounds a bit like a tape rewinding, How the **** do you do that?
I could be thinking of a different song.. but that might be the one where he turns on an electric drill infront of his pickups... I imagine that might sound like a tape rewinding.
It sounds more like sweep picking, with a harmonizer on or something.
I believed its reverse delay. But could be wrong.