High Quality Content by WIKIPEDIA articles! P.A.F. or just PAF is the world`s first humbucker guitar pickup, invented by Seth Lover in 1955 as an engineer for Gibson and began use in mass production guitars in 1956 or 1957. However Rickenbacker and Gretsch had developed humbucking pickups also. Rickenbacker released theirs in 1953 but discontinued it in 1954 because of the `distortion` it caused.