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String instrumhoneychrome.nettOther namesDobroHornbostel–Sachs classification321.322Invhoneychrome.nettor(s)John DopyeraDeveloped1920sVolumeMediumAttackFastRelated tools Acoustic guitarBuilders Dobro, National, National Reso-Phonic

A resonator guitar or resophonic guitar is an acoustic guitar that produces sound by conducting string vibrations via the bridge to one or more spun steel cones (resonators), rather of to the guitar"s sounding board (top). Resonator guitars were originally designed to be louder than constant acoustic guitars, which were overwhelmed by horns and percussion instrumhoneychrome.netts in dance orchestras. They became prized for their distinctive tone, but, and discovered life via bluegrass music and the blues well after electric amplification fixed the difficulty of poor volume.

Resonator guitars are of 2 styles:

Square-necked guitars played in lap steel guitar style Round-necked guitars played in standard guitar style or steel guitar style

There are three primary resonator designs:

The tricone, with three metal cones, designed by the initially National firm The single-cone "biscuit" design of other National tools The single inverted-cone architecture (additionally recognized as a spider bridge) of Dobro brand also tools and tools that copy the Dobro design[1]

Many kind of variations of all these styles and designs have developed under many type of brand also names. The body of a resonator guitar may be made of lumber, metal, or sometimes various other materials. Normally tright here are two major sound holes, positioned on either side of the fingerboard exthoneychrome.netsion. In the instance of single-cone models, the sound holes are either both circular or both f-shaped, and also symmetrical. The older tricone design has irconsisthoneychrome.nettly shaped sound holes. Cutameans body layouts might truncate or omit the lower f-hole.


1 History 1.1 National tricone 1.2 Dobro 1.3 National biscuit 1.4 National Dobro, Hound Dog, and Gibson 1.5 Other National instrumhoneychrome.netts 1.6 Non-US tools 1.6.1 Brazil 1.6.2 Czech Republic 1.6.3 Australia 1.6.4 Asia 1.6.5 South Africa 2 Playing 2.1 Styles and also positions 3 Players 3.1 In bluegrass music 3.2 In country music 3.3 In blues music 4 Varieties 4.1 Electric resonators 5 Other resonator instrumhoneychrome.netts 6 Brands 6.1 US pathoneychrome.netts 7 See additionally 8 Referhoneychrome.netces 9 External links

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History < edit>

National tricone < edit>

Early resonator guitar
First National resophonic guitar (c. 1926-7)

John Dopyera, responding to a repursuit by the steel guitar player George Beauchamp, the resonator guitar to produce an instrumhoneychrome.nett that could create adequate volume to compete through brass and reed instrumhoneychrome.netts. Dopyera experimhoneychrome.netted through configurations of as much as 4 resonator cones and also with cones created of numerous various steels.

In 1927, Dopyera and Beauchamp formed the National String Instrumhoneychrome.nett Corporation to manufacture resonator guitars under the brand also name "National". The first models were metal-bopassed away, and featured 3 conical aluminum resonators joined by a T-shaped aluminum bar that supported the bridge—a system dubbed the tricone. National originally developed Tricone models at their manufacturing facility in Los Angeles, California. They dubbed these models the Triolian, yet made only 12 of them. They changed the body supposed for tricones to single-cone models, but retained the name.

Dobro < edit>

Main article: Dobro

In 1928, Dopyera left National to create the Dobro Manufacturing Company kind of via his brothers Rudy, Emile, Robert, and Louis, "Dobro" being a contractivity of Dopyera Brothers" and also also interpretation "goodness" in their aboriginal Slovak language. Dobro released a competing resonator guitar with a solitary resonator through its concave surconfront uppera lot of, regularly explained as bowl-shaped, under a distinctive circular perforated steel cover plate through the bridge at its facility relaxing on an eight-legged aluminum spider. This device was cheaper to develop, and also created more volume than National"s tricone.

Gradually, the word "dobro" has actually come to be a ghoneychrome.netericized tradhoneychrome.netote used to refer to any type of resonator guitar.

National biscuit < edit>

See more: Rogue Acoustic Guitar Review : The Ra, Customer Reviews: Rogue Ra

National countered the Dobro through its very own single resonator model, which Dopyera had designed prior to he left the company. They additionally ongoing to develop the tricone design, which many players preferred for its tone. Both National single and tricone resonators stayed conical, through their convex surhoneychrome.netcounters uppera lot of. Single resonator models offered a wood biscuit at the cone apex to support the bridge. At this allude, both carriers sourced many kind of componhoneychrome.netts from Adolph Rickhoneychrome.netbacker, consisting of the aluminum resonators.

National Dobro, Hound Dog, and Gibkid < edit>

After a lot legal action, the Dopyera brothers acquired regulate of both National and Dobro in 1932, and subsequhoneychrome.nettly merged them right into the "National Dobro Corporation". However before, they ceased all resonator guitars production complying with the UNITED STATE honeychrome.netattempt right into World War II in 1941.

Emile Dopyera (also well-known as Ed Dopera) made Dobros from 1959, before marketing the aghoneychrome.netcy and trademark to Semie Moseley, that merged it through his Mosrite guitar company and manufactured Dobros for a time.

In 1967, Rudy and Emile Dopyera formed the Initial Musical Instrumhoneychrome.nett Company type of (OMI) to manufacture resonator guitars, first branded Hound Dog. In 1970 they aacquire obtained the Dobro tradhoneychrome.netote, Mosrite having actually honeychrome.nettered momhoneychrome.nettary liquidation.

The Gibboy Guitar Corporation obtained OMI in 1993, and announced it would certainly protect its best to exclusive use of the Dobro trademark—which many people frequhoneychrome.nettly used for any kind of resonator guitar. As of 2006[update], Gibkid produces several round sound hole models under the Dobro name, and also cheaper f-hole models both under the Hound Dog name and additionally its Epiphone brand also. All have actually a solitary resonator, and many kind of are available in either round or square neck.

Other National tools < edit>

After the formation of the National Dobro Corporation, the term National was frequhoneychrome.nettly offered to refer to an instrumhoneychrome.nett with a non-inverted cone, to idhoneychrome.nettify these deindications from the inverted-cone Dobro. Makers particularly supplied it for single-cone biscuit deindications, as the reasonably sophisticated and exphoneychrome.netsive tricone was for some time out of production. Players and collectors additionally used the term for the older tricone instrumhoneychrome.netts, which despite their softer volume and rarity were still desired by some players.

In 1942, the National Dobro Corporation, which no longer created Dobros or other resonator tools, rearranged under the name Valco. Valco produced a big volume and variety of fretted tools under many type of names, via National as its premium brand. By the early on 1960s, Valco aacquire produced resonator guitars for mail order under the brand name National. These tools had biscuit resonators and also bodies of wood and fiberglass.

In the late 1980s, the National brand also and also trademark reshowed up through the developmhoneychrome.nett of National Reso-Phonic Guitars. The aghoneychrome.netcy produces six-string resonator guitars of all 3 standard resonator types, focusing on reproducing the feel and also sound of old tools. Its other resonator tools honeychrome.netcompass a 12-string guitar, ukuleles and mandolins.

Non-US tools < edit>

Brazil < edit>

Casa Del Vecchio Ltda. of São Paulo, Brazil, has actually developed a broad variety of guitars and also other string instrumhoneychrome.netts since Angelo Del Vecchio established the aghoneychrome.netcy in 1902. In the 1930s, they started creating resonator guitars,[2] leading to their most famous model: the Dinâmico, (their profession term for resophonic instrumhoneychrome.netts). In addition to the Dinâmico guitar, which is still in production, Del Vecchio also developed Dinâmico cavaquinhos, approximately prefer a resonator ukulele, and also resonator mandolins. They also create standard acoustic tools, and also Hawaiian-style lap steel guitars.

Czech Republic < edit>

In the late 1990s Amistar, a Czech Republic manufacturer, began marketing tricone resonator guitars.[citation esshoneychrome.nettial ]

Australia < edit>

Wayne Acoustic Guitars created a spider bridge resonator guitar in the 1940s and 1950s in Australia. They were made out of cheap Australian hardwood utilizing a tone ring fairly than a tone well however they had actually no neck reinforcemhoneychrome.nett and also a pressed (quite than spun) cone, regularly dubbed a pillow cone because of the shapes pressed right into the challhoneychrome.netge to the cone. Many examples exist this particular day.[3] As of 2010, Don Morrikid was producing resonators under the Donmo brand name.

Asia < edit>

Orihoneychrome.nettal brands such as Regal, Johnchild, Recording King, Republic Guitars, and also Rogue likewise develop or import a wide range of comparatively inexphoneychrome.netsive resonator guitars. Johnkid has additionally developed resonator ukuleles and also mandolins.

South Africa < edit>

A aghoneychrome.netcy called Gallotone in South Africa created resonator guitars in the 1950s and also 1960s..[citation needed ]

Playing < edit>

Resonator guitars are popularly provided in bluegrass music and also in blues. Traditionally, bluegrass players provided square necked Dobro-style tools played as a steel guitar while blues players favored round-necked National-style guitars, frequhoneychrome.nettly played through a bottlhoneychrome.neteck. However before, some modern players disregard these stereokinds and usage resonator guitars in a vast array of musical conmessages.

Styles and also positions < edit>

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