Vibrato unit

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Diamond Pedals VIB1 Vibrato unit

A vibrato unit is an electronic effects unit used to add vibrato to the sound of an electric instrument, most often an electric guitar. Vibrato units may be individual stomp boxes or built into multi-effects units, but are traditionally built into guitar amplifiers. Vibrato units are particularly used in surf music.

Contents

The name vibrato unit is contrary to normal usage of the term vibrato, and in that sense the unit is incorrectly named. [1] The guitaring tradition of using the term "vibrato" to refer to a tremolo effect began in 1956 with Leo Fender's use of the term in naming the Fender Vibrolux. In all other contexts the effect produced by a traditional vibrato unit is known as tremolo rather than vibrato .

A few guitar amplifiers do feature true pitch shifting vibrato, notably some models offered in the late 1950s and into the 60s by Magnatone [2] [3] and presently by Juke Amplification [ citation needed ]. Still other amplifier manufacturers describe the effect, in accordance with standard music terminology, as tremolo.

History

What is now called a vibrato unit was one of the earliest electronic guitar effects. Danelectro, Gibson, and Premier all produced guitar amplifiers with built-in amplitude modulation units in the late 1940s.

The term vibrato was first applied to the effect in 1956 with the introduction of the Fender Vibrolux. Fender's first amplifier with this effect, the Fender Tremolux model 5E9, had been introduced in the previous year. Despite the different names, the effects circuits were similar, and the effects almost identical.

Controls

The vibrato/reverb channel of a Fender Vibrolux amplifier.
The potentiometers, from left to right, read Volume, Treble, Bass, Reverb, Speed and Intensity. Aavib.jpg
The vibrato/reverb channel of a Fender Vibrolux amplifier.
The potentiometers, from left to right, read Volume, Treble, Bass, Reverb, Speed and Intensity.

A vibrato unit normally has three controls:

Vibrato or tremolo?

The term "vibrato unit" was introduced on high-end Fender guitar amplifiers in the 1950s, starting with the Vibrolux amplifier in 1956, in the same period in which what is now called a "tremolo arm" was introduced on Fender guitars.

The "synchronised tremolo" was introduced in 1954 on the first Stratocaster guitar. The only previously successful "tremolo arm" was the Bigsby vibrato tailpiece, often simply called a "Bigsby". In 1958, Fender reinforced his usage with the "Fender floating tremolo" on the Jazzmaster and some subsequent guitars. The "synchronised tremolo" became the most copied of these three basic patterns of "tremolo arm", although both of the others continue to have some following.

In both the case of the "tremolo arm" and "vibrato unit", Leo Fender had reversed the established usage of the terms vibrato and tremolo. That is, he called a device that produced true vibrato a "synchronised tremolo", and a device that produced true tremolo a "vibrato unit". In fact he was using the terms interchangeably. The first Fender vibrato unit (1954) was called "tremolo", and some later Fender tremolo arms were called "vibrato tailpieces" or similar.

But the terms that became established were "tremolo arm" and "vibrato unit", both contrary to standard usage, with the result that electric guitarists traditionally use the terms "vibrato" and "tremolo" in the opposite senses to all other musicians when describing these hardware devices and the effects they produce.

True vibrato

Demonstration of a vibrato effect pedal, varying the pitch of the signal.

Guitarists do also produce true vibrato in many different ways, including:

In common with all other musicians, all guitarists from classical to rock use the term vibrato to describe finger vibrato.

See also

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Bigsby vibrato tailpiece Vibrato device for electric guitars

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Fender amplifier

Leo Fender began building guitar amplifiers before he started manufacturing electric guitars. The first of these were the K&F models, produced between 1945 and 1946. The early K&F and Fender amplifiers relied upon vacuum tube circuitry, with the company adding solid-state models in the late 1960s.

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The Fender Twin and Twin Reverb are guitar amplifiers made by Fender Musical Instruments Corporation. The Twin was introduced in 1952, two years before Fender began selling Stratocaster electric guitars. The amps are known for their characteristically clean tone.

The Fender Tremolux was a guitar amplifier made by Fender. It was introduced in the summer of 1955 with a rated power output of 15 watts, cathode bias, two 6V6 output tubes, and a 5V4 tube rectifier. The Tremolux was the first Fender amp with a built in effect, tremolo.

Stetsbar

The Stetsbar Tremolo system is a vibrato bridge system for the electric guitar. Eric Stets developed the device in the late ‘80s, and patented it in 1995. He originally designed the device to provide a stable vibrato system that could retrofit to “stop-tail” guitars such as the Gibson Les Paul with no permanent modifications to the instrument.

Doc Kauffman American businessman

Doc Kauffman was a lap steel guitar, electric guitar engineer, inventor & pioneer of the world's first patented guitar vibrola. The patent for "Apparatus for producing tremolo effects" was applied for in 1928 and officially granted to Doc Kauffman on January 5, 1932.

Bridge (instrument) device for supporting the strings on a stringed instrument

A bridge is a device that supports the strings on a stringed musical instrument and transmits the vibration of those strings to another structural component of the instrument—typically a soundboard, such as the top of a guitar or violin—which transfers the sound to the surrounding air. Depending on the instrument, the bridge may be made of carved wood, metal or other materials. The bridge supports the strings and holds them over the body of the instrument under tension.

Fender Vibroverb

The Fender Vibroverb was a 40-watt combo guitar amplifier originally manufactured in 1963 and 1964. It was the first Fender amplifier to incorporate on-board reverb which became a standard feature on many high-end Fender tube amps during the 1960s and 1970s.

Magnatone

Magnatone was a brand of electric guitars and amplifiers produced between 1937 and the mid-1970s. The company was based in California. The brand name was revived in the 2010s by Ted Kornblum.

Tremolo, in electronics, is the variation in amplitude of sound achieved through electronic means, sometimes mistakenly called vibrato, and producing a sound somewhat reminiscent of flanging, referred to as an "underwater effect". A variety of means are available to achieve the effect. For further information about the use of tremolo in music, including notation, see Tremolo.

Bigsby Electric Guitars

Bigsby Vibratos is a brand of vibrato systems for guitars that operated as an independent company by Paul Bigsby manufacturing electric guitars until 1966 when it was purchased by ex-Gibson executive Ted McCarty. In 1999, the brand was acquired by Gretsch from McCarty, which owned it until 2019, when Bigsby was sold to Fender Musical Instruments Corporation.

References

  1. Fender '65 Princeton Reverb Reissue | Guitar reviews | MusicRadar.com ...the effect is misnamed. Vibrato in musical terms means modulation of pitch...
  2. "F.M. Vibrato". Magnatoneamps.com. In sales literature, Magna called the vibrato "F.M. Vibrato" for full modulation vibrato). Whereas most other companies incorrectly labeled volume modulation as vibrato, Magnatone's vibrato was true pitch shifting vibrato.
  3. USpatent 2988706,Don L. Bonham,"Vibrato circuit comprising a bridge having non-linear impedance elements",issued 1961-06-13