The wah-wah pedal makes a guitar sound as though ... it on hits such as Cream's "White Room," and even Led Zeppelin's Jimmy Page made use of it on occasion ("Dazed and Confused").

But for most people, it’s Jimmy Page they picture holding the iconic guitar first introduced in 1963, strumming those immortal chords to Stairway to Heaven on its upper-half 12-string.