Question: When was the first electric version of Paul D'amour's instrument made?

full_context: Document 1: Massive Grooves from the Electric Church of Psychofunkadelic Grungelism Rock Music: Massive Grooves is the first solo album by King's X bassist Doug Pinnick under the name of Poundhound. The full title of the album is ""Massive Grooves From The Electric Church Of Psychofunkadelic Grungelism Rock Music"" but is typically shortened for obvious reasons.
Document 2: Paul D'Amour: Paul D'Amour (born May 12, 1967) is an American musician and the first bass guitarist for Tool. His bass sound was recognized by the aggressive picked tone he developed with his Chris Squire Signature Rickenbacker 4001CS, which can clearly be heard on Tool's first full-length album, "Undertow".
Document 3: Höfner 500/1: The Höfner 500/1 violin bass (nicknamed the "Beatle bass" or "Cavern bass") is a hollow-bodied bass guitar manufactured by Höfner under several varieties. It was introduced in the mid-1950s and gained celebrity status during the 1960s as one of the primary basses used by Paul McCartney of The Beatles.
Document 4: Tone (Jeff Ament album): Tone is the debut solo album of American rock bassist and Pearl Jam-member Jeff Ament, released September 16, 2008 on Monkeywrench Records. 3,000 copies of the album were pressed and distributed through independent record stores across the United States, as well as through Pearl Jam's official website. The album has also been made available as a digital download via Pearl Jam's official website for US$4.99.
Document 5: Mick Grøndahl: Mick Grøndahl (often spelled Grondahl) (born 7 May 1968) is a Danish-American bass guitarist. Born and brought up in Denmark, he is best known for playing bass guitar on Jeff Buckley's debut album, "Grace".
Document 6: Mandolin: Numerous modern mandolin makers build instruments that largely replicate the Gibson F-5 Artist models built in the early 1920s under the supervision of Gibson acoustician Lloyd Loar. Original Loar-signed instruments are sought after and extremely valuable. Other makers from the Loar period and earlier include Lyon and Healy, Vega and Larson Brothers. Some notable modern American carved mandolin manufacturers include, in addition to Kay, Gibson, Weber, Monteleone and Collings. Mandolins from other countries include The Loar (China), Santa, Rosa (China), Michael Kelly (Korea), Eastman (China), Kentucky (China), Heiden (Canada), Gilchrist (Australia) and Morgan Monroe (China).
Document 7: Mandolin: The instrument was primarily used in an ensemble setting well into the 1930s, and although the fad died out at the beginning of the 1930s, the instruments that were developed for the orchestra found a new home in bluegrass. The famous Lloyd Loar Master Model from Gibson (1923) was designed to boost the flagging interest in mandolin ensembles, with little success. However, The "Loar" became the defining instrument of bluegrass music when Bill Monroe purchased F-5 S/N 73987 in a Florida barbershop in 1943 and popularized it as his main instrument.
Document 8: Mandolin: Another family of bowlback mandolins came from Milan and Lombardy. These mandolins are closer to the mandolino or mandore than other modern mandolins. They are shorter and wider than the standard Neapolitan mandolin, with a shallow back. The instruments have 6 strings, 3 wire treble-strings and 3 gut or wire-wrapped-silk bass-strings. The strings ran between the tuning pegs and a bridge that was glued to the soundboard, as a guitar's. The Lombardic mandolins were tuned g b e' a' d" g". A developer of the Milanese stye was Antonio Monzino (Milan) and his family who made them for 6 generations.
Document 9: Solid body: The origins of the solid body electric guitar are confusing. The first commercially available solid body electric Spanish guitar was produced by the Rickenbacker company in 1931. Les Paul, a guitarist, is often erroneously credited with inventing the first solid body, but Fender is often incorrectly credited as the first to commercially market a solid body electric guitar, which itself was based on a design by Merle Travis. Also it is reported that around the same time (1940) a solid body was created by Jamaican musician and inventor, Hedley Jones. In the 1940s, Les Paul created a guitar called the ``Log, ''which came`` from the 4'' by 4 ''solid block of pine which the guitarist had inserted between the sawed halves of the body that he'd just dismembered. He then carefully re-joined the neck to the pine log, using some metal brackets.'' He then put some pickups that he designed on it. He soon went to companies asking if they would buy his guitar. They turned him down. However, after the Fender Telecaster electric guitar became popular, the Gibson company contacted him and had him endorse a model named after him, The Les Paul guitar. It came out in 1952.
Document 10: Ned Steinberger: Ned Steinberger (b. Princeton, New Jersey, 1948) is an American creator of innovative musical instruments. He is most notable for his design of guitars and basses without a traditional headstock, which are called Steinberger instruments. He also has a line of electric basses and string instruments through his company called NS Design and was also the designer of the first ever Spector bass, the NS. In addition, Ned and Emmett Chapman, creator of the Chapman Stick, collaborated on the creation of the NS Stick, a guitar/bass "multi-mode" instrument sold by Stick Enterprises.
Document 11: Music Man Bongo: The Bongo is a model of bass guitar manufactured by Music Man, a division of Ernie Ball. It was first introduced at the NAMM Show on March 21, 2003. Ernie Ball president Sterling Ball designed the instrument in conjunction with the Music Man Research and Development department and BMW's Designworks team. It is equipped with an 18-volt 4-band preamp (except on the single-pickup model, which has a 3-band preamp; single-pickup models with piezo bridges have a 4-band preamp) designed by Dudley Gimpel with help from Cliff Hugo and other Music Man artists. It also sports a sleek, carved basswood body with high-gloss polyester finish and a satin-finish painted 34" scale maple neck with rosewood fingerboard (pau ferro on lined or unlined fretless, ebony on both fretted and fretless "stealth" basses) featuring 24 high-profile wide frets and crescent moon-shaped position inlays. These basses are generally known for their dual humbucking pickup configuration, as they are the first twin humbucker-equipped models released by Music Man since the introduction of their Sabre and Cutlass bass guitars in the late 1970s.
Document 12: Bass guitar: In the 1930s, musician and inventor Paul Tutmarc from Seattle, Washington, who was manufacturing lap steel guitars, developed the first electric string bass in its modern form, a fretted instrument designed to be played horizontally. The 1935 sales catalog for Tutmarc's electronic musical instrument company, Audiovox, featured his ``Model 736 Bass Fiddle '', a four - stringed, solid - bodied, fretted electric bass instrument with a 30 ⁄ - inch (775 - millimetre) scale length. The adoption of a guitar's body shape made the instrument easier to hold and transport than any of the existing stringed bass instruments. The addition of frets enabled bassists to play in tune more easily than on fretless acoustic or electric upright basses. Around 100 of these instruments were made during this period.
Document 13: Mark Kelly (bassist): Mark Dean Kelly (born June 28, 1956) is a Christian bass guitarist most remembered for being a member of Petra during the 1980s. Kelly joined Petra in 1981 and recorded seven albums with them before retiring in 1988, being replaced by Ronny Cates.
Document 14: Lee Dorman: Douglas Lee Dorman (September 15, 1942 – December 21, 2012) was an American bass guitarist best known as a member of the rock band Iron Butterfly. He also played in the band Captain Beyond. Dorman was from St. Louis, Missouri, and moved to San Diego, California in the 1960s. He began playing bass guitar in his teens. While recording "In-A-Gadda-Da-Vida", Dorman assisted Erik Brann with the arrangement of Brann's song "Termination," and was given a co-writing credit.
Document 15: Roger Waters discography: Roger Waterss primary instrument is the electric bass guitar. He briefly played a Höfner bass but replaced it with a Rickenbacker RM-1999/4001S, until around 1970 when he switched to Fender Precision basses. He often plays bass using a pick but is also known to play fingerstyle. Not only a bassist and vocalist, Waters has experimented with the EMS Synthi A and VCS 3 synthesisers and has played electric rhythm and acoustic guitars in recordings and in concert. Throughout his career he has used Selmer, WEM, Hiwatt and Ashdown amplifiers, also employing delay, tremolo, chorus, panning and phaser effects in his music.
ground_truth: the 1930s
sub_queries: Paul D'Amour >> instrument Answer: bass guitar
when was the first electric bass guitar made Answer: the 1930s