Dobro

Dobro is an American musical-instrument brand whose name is closely associated with the single-cone resonator guitar. The brand originated with the Dopyera brothers, Slovak immigrants and instrument makers whose work addressed a practical problem in early amplified acoustic music: conventional guitars were often too quiet for performance alongside other instruments. John Dopyera collaborated with musician George Beauchamp on resonator technology and developed an early amplifying device that was patented in 1929. After leaving the National String Instrument Corporation, John formed the Dobro Manufacturing Company with his brothers Rudy and Ed Dopyera and Vic Smith. The name Dobro was derived from “Dopyera brothers” and also carried a favorable meaning in Slovak and other Slavic languages. The company used the phrase “Dobro means good in any language” as an early slogan. Its defining design differed from National’s earlier tricone and biscuit instruments. Rather than placing the resonator cone inward or supporting the bridge at the cone’s apex, Dobro used a single outward-facing, bowl-shaped cone. The bridge rested on an eight-legged cast-aluminum spider positioned around the cone’s perimeter. This arrangement produced a loud, distinctive voice while allowing a relatively economical construction. Dobro initially competed directly with National. In the early 1930s, the Dopyera brothers gained control of both operations, which were combined into the National-Dobro Company. The business and its successors produced a range of resonator instruments, including wood- and metal-bodied guitars, while the Dobro name also appeared on electric lap steels, solid-body electric guitars, and resonator mandolins. After World War II, Valco acquired National-Dobro and discontinued Dobro-branded production, although members of the Dopyera family continued making resonator instruments under other names. The Dobro name was revived by the Dopyera brothers in 1964, sold to Semie Moseley in 1966, and reacquired in 1970 by the Dopyeras’ Original Musical Instrument Company. Gibson Guitar Corporation acquired Original Musical Instrument Company and the Dobro name in 1993. Dobro subsequently became part of Gibson’s Original Acoustic Instruments division, with production moved to Nashville in 2000. By February 2012, Dobro instruments were being manufactured by Gibson subsidiary Epiphone. The brand was no longer listed on Epiphone’s website as of January 2023, so its current production status is unclear. The instrument became particularly important in country and bluegrass music. Bashful Brother Oswald helped introduce the Dobro to country audiences through his work with Roy Acuff beginning in January 1939. The brand remains culturally important even where specific products are unavailable, because “dobro” is also widely used as a generic term for a wood-bodied, single-cone resonator guitar. A 1933 Dobro Resonator Guitar Model 27 owned by David Gilmour sold for $112,500 at auction on June 19, 2019, illustrating the historical and collector value attached to notable pre-war instruments.

The Dobro story began in the 1920s, when Slovak immigrant and instrument repairman John Dopyera worked with musician George Beauchamp to find a way to make guitars louder. Dopyera developed an ampliphonic, or resonator, device for Beauchamp, and the invention was patented in December 1929. Dopyera had previously been associated with the National String Instrument Corporation, but left in mid-1929 to establish the Dobro Manufacturing Company with his brothers Rudy and Ed Dopyera and Vic Smith. Dobro’s name referred both to the Dopyera brothers and to a word meaning “good” in Slovak and related Slavic languages. The company’s early slogan emphasized this double meaning. Its principal innovation was a single-cone resonator guitar designed to compete with National’s patented instruments. John Dopyera believed that existing resonator guitars were too expensive for many players. When National’s directors did not support his proposal for a more affordable single-cone design, he developed a different configuration that avoided National’s inward-facing cone patent. The Dobro design placed a single cone with its concave surface facing upward. An eight-legged cast-aluminum spider supported the bridge around the perimeter of the cone, rather than placing the bridge directly on the cone’s apex. The result was a louder and less costly instrument than earlier tricone designs. Dobro and National manufactured both wood- and metal-bodied single-cone guitars and obtained some components from suppliers associated with National director Adolph Rickenbacker. By 1932, the Dopyera brothers had obtained control of both Dobro and National, leading to the creation of the National-Dobro Company. The combined business continued producing resonator guitars and related instruments. Dobro’s sound became especially influential in country music. Bashful Brother Oswald played the instrument with Roy Acuff beginning in January 1939, helping establish the Dobro in the country-music soundscape. Valco later acquired National-Dobro. After World War II, Valco ended production of Dobro-branded guitars, although the Dopyera family continued making resonator instruments under other brand names. The Dobro name was revived in 1964, sold to Semie Moseley in 1966, and reacquired by the Dopyeras’ Original Musical Instrument Company in 1970. Gibson Guitar Corporation acquired Original Musical Instrument Company and the Dobro name in 1993. The brand became part of Gibson’s Original Acoustic Instruments division, and production moved to Nashville in 2000. Gibson and its subsidiary Epiphone subsequently produced several Dobro and Epiphone Dobro models, including Hound Dog, Deluxe round-neck and square-neck instruments, the M-14 metal-body model, and the Phil Leadbetter series. By January 2023, Dobro was not listed on Epiphone’s website, and publicly available reference material did not establish whether regular production had ended permanently. The word “dobro” has also become a generic label for wood-bodied, single-cone resonator guitars, even when the instrument is not made by the Dobro brand. Historical examples remain collectible. A 1933 Dobro Model 27 owned by David Gilmour sold for $112,500 at auction in June 2019. The brand’s early prototypes are preserved in a museum in Taft, California, near the place associated with the invention’s development.

• 2019

  Historic Model 27 achieved auction record

  [1]Dobroen.wikipedia.org

  David Gilmour’s 1933 Dobro Model 27 sold for $112,500 at auction on June 19.

• 2000

  Production moved to Nashville

  [1]Dobroen.wikipedia.org

  Dobro production was moved to Nashville within Gibson’s Original Acoustic Instruments division.

• 1993

  Gibson acquired Dobro

  [1]Dobroen.wikipedia.org

  Gibson Guitar Corporation acquired Original Musical Instrument Company and the Dobro brand.

• 1970

  Original Musical Instrument Company reacquired the name

  [1]Dobroen.wikipedia.org

  The Dopyeras’ Original Musical Instrument Company reacquired the Dobro name.

• 1964

  Dobro name revived

  [1]Dobroen.wikipedia.org

  The Dopyera brothers revived the Dobro brand name after postwar discontinuation under Valco.

• 1939

  Dobro enters country-music mainstream

  [1]Dobroen.wikipedia.org

  Bashful Brother Oswald began playing Dobro with Roy Acuff, helping introduce the instrument to country audiences.

• 1932

  National and Dobro combined

  [1]Dobroen.wikipedia.org

  The Dopyera brothers gained control of National and combined the businesses as the National-Dobro Company.

• 1930

  Company reorganized as Dobro Corporation

  [1]Dobroen.wikipedia.org

  The company changed its name to Dobro Corporation, Ltd., with additional capital supplied by Louis and Robert Dopyera.

• 1929

  Dobro Manufacturing Company established

  [1]Dobroen.wikipedia.org

  John, Rudy, and Ed Dopyera and Vic Smith established the Dobro Manufacturing Company after John Dopyera left National.

• 1929

  Resonator invention patented

  [1]Dobroen.wikipedia.org

  John Dopyera’s ampliphonic resonator work was patented in December, helping establish the technical foundation for Dobro instruments.

A historically significant resonator-instrument brand centered on loud, distinctive single-cone guitars for country, bluegrass, slide, roots, and related acoustic music.

• Resonator guitar

  Hound Dog

  The Hound Dog was one of the resonator-guitar lines produced under the Gibson/Epiphone Dobro family. It represented the brand’s continuation under Gibson ownership and was associated with the traditional single-cone resonator format.

• Resonator guitar

  Deluxe round-neck

  The Deluxe round-neck was a Dobro resonator guitar configuration designed for conventional fretting technique. It belonged to the brand’s Gibson-era product range and combined a traditional resonator voice with a round-neck playing format.

• Resonator guitar

  Deluxe square-neck

  The Deluxe square-neck was intended for lap-style playing, a format strongly associated with bluegrass and slide performance. It formed part of the Dobro range manufactured under Gibson and Epiphone.

• Metal-bodied resonator guitar

  M-14 metal body

  The M-14 was a metal-bodied resonator model in the Gibson-era Dobro catalog. Its metal construction distinguished it from the wood-bodied instruments most commonly associated with the generic Dobro sound.

• Signature resonator guitar

  Phil Leadbetter resonator series

  The Phil Leadbetter series was a signature-oriented Dobro resonator range associated with the bluegrass and resonator-guitar performer Phil Leadbetter. Specific model availability and production dates are not established in the supplied reference.

• 2012

  Epiphone manufacturing responsibilityStrategy

  Background

  Dobro was operating within the Gibson organization and its acoustic-instrument portfolio.

  Action taken

  By February, Dobro instruments were manufactured by Gibson subsidiary Epiphone.

  Aftermath

  The brand continued through Epiphone production for at least part of the following decade, although its later catalog presence became unclear.

  Source

• 2000

  Relocation of production to NashvilleStrategy

  Background

  Following Gibson’s acquisition of the brand, Dobro was integrated into Gibson’s acoustic-instrument operations.

  Action taken

  Production was moved to Nashville.

  Aftermath

  The move further integrated Dobro into Gibson’s manufacturing structure.

  Source

• 1993

  Gibson acquisition of DobroM&A

  Background

  Dobro was held by Original Musical Instrument Company after the name had been revived and reacquired by the Dopyera family.

  Action taken

  Gibson Guitar Corporation acquired Original Musical Instrument Company together with the Dobro name.

  Aftermath

  Dobro became part of Gibson’s Original Acoustic Instruments division, with later manufacturing handled by Gibson and Epiphone.

  Source

• 1929

  Launch of the single-cone Dobro designProduct launch

  Background

  The Dopyeras sought a louder and more affordable alternative to earlier resonator-guitar designs, particularly National’s tricone and biscuit instruments.

  Action taken

  Dobro introduced a single outward-facing cone supported by an eight-legged spider bridge around the cone’s perimeter.

  Aftermath

  The design became the defining technical and visual basis of the Dobro brand and later influenced the generic use of the word “dobro” for similar instruments.

  Source

1. 1Dobroen.wikipedia.org