When Les Paul fanatics talk vintage style pickups, there’s one pickup type that gets talked about more often than any other: the legendary "PAF". Those three letters stand for "Patent Applied For" and are a reference to the earliest humbucking pickups used in Gibson guitars. Even after more than forty years of continued development and advancement in pickup technology, the PAF remains the premier tonal choice for expressive blues and rock players.
This has driven early original PAF pickup prices to extreme levels and as of this writing in 2003, prices of $1000+ each are not uncommon for those that require the original deal. For the rest of us thankfully, replacement pickups fashioned after the original PAFs are offered by numerous pickup manufacturers and are much more affordable.