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.^{[clarification needed]} Rickenbacker released theirs in 1953 but discontinued it in 1954 because of the 'distortion' it caused.^{[citation needed]}

The strange name (PAF) of the pickup was not intentional. Gibson and Seth Lover first filed a patent on the design on June 22, 1955. After that, Gibson Les Pauls were equipped with these new pickups, with a sticker on a bottom plate of a pickup that said Patent Applied For. A patent was eventually issued on July 28, 1959. Since it took more than four years to get a patent number, the unnamed pickup had been dubbed "PAF" by many guitarists during the period the application was pending, and this name continued even after the patent had been issued.

PAF pickups can usually be identified by their look: they have two internal coil bobbins under a 1.5" x 2.75" metal cover with one bobbin having a row of six adjustable pole pieces, with the other bobbin having non-adjustable pole pieces. Standard PAF pickups had 5000 or so turns[1] of wire on a bobbin and a DC resistance of 7.5 kΩ (early pickups range from 7.5 kΩ to 9.0 kΩ).

The Pakistan Air Force (Urdu: پاک فضائیه; English IPA: pɑkʰ fizʰæ'jə, Pak Fiza'ya), abbrieviated as PAF, is the leading air warfare and the uniform service branch of the Pakistan Armed Forces, primarily tasked with the aerial offense and defence of Islamic Republic of Pakistan with a secondary role of providing air logistics support to the Pakistan Army and the Pakistan Navy. The PAF also has a tertiary role of providing strategic air transport and logistics capability to Pakistan. The PAF employs approximately 65,000 full-time personnel (including approximately 3,000 pilots) and, currently, operates 550 combat aircraft as well as various transport and training aircraft.

In 1933, British colonial government of India established the subcontinent’s first Air Force station near Drigh Road, now called PAF Base Faisal. In 1934, this element of the Royal Indian Air Force (RIAF) was extended to the North for operations in the North West Frontier Province. Later the RIAF contributed to the defeat of the Japanese invasion during World War II.

Lester William Polsfuss (June 9, 1915 – August 13, 2009)—known as Les Paul—was an American jazz and country guitarist, songwriter and inventor. He was the inventor of the solid-body electric guitar which made the sound of rock and roll possible. He is credited with many recording innovations. Although he was not the first to use the technique, his early experiments with overdubbing (also known as sound on sound),delay effects such as tape delay, phasing effects and multitrack recording were among the first to attract widespread attention.

His innovative talents extended into his playing style, including licks, trills, chording sequences, fretting techniques and timing, which set him apart from his contemporaries and inspired many guitarists of the present day. He recorded with his wife Mary Ford in the 1950s, and they sold millions of records.

Among his many honors, Paul is one of a handful of artists with a permanent, stand-alone exhibit in the Rock and Roll Hall of Fame. He is prominently named by the music museum on its website as an "architect" and a "key inductee" along with Sam Phillips and Alan Freed.

Paul Reed Smith (born February 18, 1956), is a luthier and the founder and owner of PRS Guitars.

Smith is originally from Bowie, Maryland.^{[citation needed]} He made his first guitar while at St. Mary's College of Maryland, and continued to build guitars after he finished college, making them one at a time, one a month. Together with another local, John "Orkie" Ingram, they formed the nucleus of what would become Paul Reed Smith Guitars.

Smith would often bring his guitars backstage at concerts, and eventually got his break when Derek St. Holmes, of the Ted Nugent Band, agreed to try out #2, the second guitar Smith had ever made. St. Holmes played the guitar for the first few songs of his set, and Smith told him that after he showed it to some other musicians, he would fly out to Detroit and give it to him. St. Holmes eventually sold the guitar for $200.

Smith then contacted Ted McCarty, former president of Gibson and creator of the Explorer, ES-335 and Flying V guitars, and McCarty became his mentor and adviser. The result of their collaboration was the current line of PRS Guitars, which include solid- and hollow-body guitars. The Private Stock line of PRS guitars are made utilizing a vast range of exotic materials including various stones, elaborately figured tone woods, and intricate shells for inlays.