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This image shows three single coil pickups on a Stratocaster guitar. Left to right: bridge, middle and neck pickups.
This image shows three single coil pickups on a Stratocaster guitar. Left to right: bridge, middle and neck pickups.

A single coil pickup is a type of magnetic transducer for the electric guitar and the electric bass. A pickup device acts as a Transducer that captures mechanical vibrations (usually from suitably equipped Stringed instruments such as the Electric guitar A transducer is a device usually electrical, electronic, Electro-mechanical, Electromagnetic, Photonic, or Photovoltaic An electric guitar is a type of Guitar that uses pickups to convert the vibration of its steel-cored strings into an electrical current which is made louder The electric bass guitar (also called electric bass, or simply bass; ˈbeɪs as in "base" is a Stringed instrument played primarily with the It electromagnetically converts the vibration of the strings to an electric signal.

Contents

History

Beauchamp

Sketch of Rickenbacker "frying pan" lap steel guitar from 1934 patent application.
Sketch of Rickenbacker "frying pan" lap steel guitar from 1934 patent application.

In the mid 1920s George Beauchamp, a Los Angeles, California guitarist, began experimentation with electric amplification of the guitar. George D Beauchamp (1899 &ndash 1941 inventor of musical instruments and co-founder of National Stringed Instrument Corporation and Rickenbacker. Originally using a phonograph pickup assembly, Beauchamp began testing many different combinations of coils and magnets hoping to create the first electromagnetic guitar pickup. He wound his earliest coils using a motor out of a washing machine, later on switching to a sewing machine motor, and eventually using single coiled magnets.

Beauchamp was backed in his efforts by Adolph Rickenbacker, an engineer and wealthy owner of a successful tool and die business. Beauchamp eventually produced the first successful single coil pickup. The pickup consisted of two massive "U" shaped magnets and one coil and was known as the "horseshoe pickup". The two horseshoe-shaped magnets surrounded the strings that passed over a single core plate (or blade) in the center of the coil.

Beauchamp outfitted the pickup in a custom built lap slide guitar. The production model based on this prototype became the Hawaiian Electro lap steel guitar, nicknamed the "Frying Pan" for its round, flat body. The lap steel guitar is a type of Steel guitar, from which other types developed

In 1931 Beauchamp founded the Ro-Pat-In Company with Rickenbacker and his associates. Ro-Pat-In eventually became the The Electro String Instrument Corporation and subsequently the Rickenbacker International Corporation. For the American WWI fighter pilot see Eddie Rickenbacker. For the airport see Rickenbacker International Airport. The company introduced its first "Electro-String Instruments" to the public in 1932.

Gibson

The Gibson Guitar Corporation introduced the "bar pickup" in 1935 for its new line of Hawaiian lap steel guitars. The Gibson Guitar Corporation of Nashville Tennessee, USA is a manufacturer of acoustic and Electric guitars The company's most popular guitar The pickup's basic construction is that of a metal blade inserted through the coil as a shared pole piece for all the strings. A pair of large flat magnets were fastened below the coil assembly.

In 1936 Gibson introduced the ES-150, its first electric Spanish styled guitar. The Gibson Guitar Corporation 's ES-150 Guitar is generally recognized as the world's first commercially successful Spanish-style Electric guitar. The ES-150 was outfitted with the bar pickup. Jazz guitar innovator, Charlie Christian, began playing an ES-150 in the late 1930s with the Benny Goodman Orchestra. Charlie Christian (Charles Henry Christian ( 29 July 1916 &ndash 2 March 1942) was an American swing and Bebop This caused the popularity of the electrified guitar to soar. Due to Christian’s close association with the ES-150 it began being referred to as the “Charlie Christian Model” and Gibson’s now famous bar pickup as the “Charlie Christian pickup” or “CC unit”.

Sound

String effect on a single coil (electric guitar). The coil is connected to a multimeter that indicates the voltage changes when the string moves. This signal is normally sent to the amplifier.
String effect on a single coil (electric guitar). The coil is connected to a multimeter that indicates the voltage changes when the string moves. This signal is normally sent to the amplifier.

The sound of a single coil pickup can range from the dark and fat midrange sound of the Gibson P-90 to the bright and clear Fender Telecaster single-coil tone.

Common designs

Gibson P-90

P-90s on Epiphone Casino, "dog-ear" variety.
P-90s on Epiphone Casino, "dog-ear" variety.
Main article: P-90

The P-90 is a single coil pickup designed by the Gibson Guitar Corporation. The P-90 is a Single coil Electric guitar pickup produced by Gibson since 1946. The Gibson Guitar Corporation of Nashville Tennessee, USA is a manufacturer of acoustic and Electric guitars The company's most popular guitar These pickups have a large flat coil with adjustable steel screws as pole pieces, and a pair of flat alnico bar magnets lying under the coil bobbin. The adjustable pole pieces pick up the magnetism from the magnets moving the screw closer or further away from the magnet effects signal strength thus tone as well. There are 2 major varieties of P-90 pickup that differ mainly by mounting options:

The sound of P-90 is somewhat brighter and more transparent than a later Gibson pickup, a humbucker, though not quite as crisp and snappy as Fender's single coil pickups. A conventional humbucker (or Humbucking pickup) is a type of Electric guitar pickup that uses two coils both generating string signal

Telecaster design

The Fender Telecaster features two single-coils. The Fender Telecaster, also known as the Tele (pronounced Telly is typically a dual-pickup solid-body Electric guitar made by Fender. The neck pickup produces a mellower sound, while the bridge pickup produces an extremely twangy, sharp tone with exaggerated treble response, because the bridge pickup is mounted on a steel plate. These design elements allow musicians to emulate steel guitar sounds, making it particularly appropriate for country music. Steel guitar is A method of playing Slide guitar using a steel.

Pickups are selected with a 3-position switch, and two wiring schemes exist:

The Fender Esquire has a variation to the Vintage wiring scheme by using the scheme on a single pickup. This gives a treble cutoff in the neck position, normal in the middle position, and a tone control cutoff in the bridge position.

Stratocaster design

Stratocaster pickups, viewed along the neck profile. Note that the poles are of different heights.
Stratocaster pickups, viewed along the neck profile. Note that the poles are of different heights.

The traditional Stratocaster design guitar features three single-coils. The Fender Stratocaster, often referred to as the Strat, is a model of Electric guitar designed by Leo Fender, George Fullerton and Freddie Tavares The guitarist can control what pickup or pickup combination to activate with a lever switch. A switch is a mechanical device used to connect and disconnect an electric Circuit at will They are usually referred to as the bridge, middle and neck pickups based on their proximity to those parts of the instrument. A bridge is a device for supporting the strings on a Stringed instrument and transmitting the Vibration of those strings to some other structural component The neck is the part of certain String instruments that projects from the main body and is the base of the Fingerboard, where the fingers are placed to stop the strings

Pickup position, number of coil winds, wire types, magnets and other factors shape the tone. Pickups in the neck position usually give louder, mellower and warmer sound, while bridge pickups have lower output and produce a brighter, sharper and more harmonic-rich tone. The reason the neck pickup has the most output is that the string's vibration has a higher amplitude at the neck position. Amplitude is the magnitude of change in the oscillating variable with each Oscillation, within an oscillating system Thus, the bridge pickup has less output than the neck pickup. Some manufacturers overwind the bridge pickup for more output to compensate for this difference.

The poles have different heights. This staggering is done to compensate for the output of each string for two reasons. The first reason is because the fretboard has a radius (also called camber) of between 7 and 12 inches. The fingerboard (also known as a fretboard on fretted instruments is a part of most Stringed instruments It is a thin long strip of Wood that is Naturally the strings will follow the radius of the fretboard and so must the magnets, generally speaking. The second reason is that some strings have naturally higher output, the plain or unwound G string being the most significant and this calls for these magnets to be further compensated, resulting in an apparent odd looking stagger. Fender Strat pickups generally follow the traditional design and have the G string's magnet as high as the D string's, but this causes the G string to overly dominate all the other strings due to its higher output. Traditionally in the 1950s and 1960s, string sets came with a wound G string, but it was difficult to bend across the fretboard in modern rock and blues styles of music. The 1950s Decade refers to the years of 1950 to 1959 inclusive The 1960s decade refers to the years from the beginning of 1960 to the end of 1969 Finger vibrato is Vibrato produced on a String instrument by cyclic hand movements In the 1970s, string manufacturers introduced the non-wound G string, which was easier to bend, but had a much higher output. In order for the G string to have the same output the G pole should have the greatest gap between the string.

The pickup selection switch has 5 positions. Positions 1, 3 and 5 activate only one pickup (bridge, middle or neck respectively), while positions 2 and 4 activate a combination of two pickups (bridge and middle, or middle and neck, respectively). Some pickup sets have a reverse wound and reverse polarity middle pickup that when in combination with the normal bridge or neck pickups will cancel electromagnetic interference (noise/hum). The sonic effect of positions 2 and 4 is sometimes referred to as a "quack", and some guitar notation includes directions to use these pickup combinations. One example is "Sultans of Swing" by Dire Straits which is played in position 2 (bridge and middle)[1]. " Sultans of Swing " was the first single release of the British rock band Dire Straits. Dire Straits was a British rock band, formed in 1977 by Mark Knopfler (guitar and vocals his brother David Knopfler (guitar Early Stratocasters had only a three-way selector, but innovative guitarists found they could get an interesting tone by carefully balancing the selector switch lever between positions. Later on, Fender introduced the now standard 5 way selector switch.

Notable single-coil pickups

There are several well-known single-coil pickups that have a distinctive sound:

See also

References

  1. ^ Steve Cobham (June 1997). The "Charlie Christian" pickup was an early Electric guitar pickup. The P-90 is a Single coil Electric guitar pickup produced by Gibson since 1946. A lipstick guitar pickup is a form of Single-coil magnetic guitar pickup having its Electronics totally encased in a chrome-plated metal tube The Lace Sensor is a Guitar pickup designed by Don Lace and manufactured by AGI (Actodyne General International since 1985. Kinman Guitar Electrix is a small boutique Australian company that specializes in the design and manufacture of hi-tech innovative Zero-Hum pickups for A conventional humbucker (or Humbucking pickup) is a type of Electric guitar pickup that uses two coils both generating string signal "NECK AND NECK - Gibson Les Paul and Fender Strat Compared". Sound On Stage.  

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