paragraph_text: Wilhelmine, Gräfin von Lichtenau, born as Wilhelmine Enke, also spelled Encke (29 December 1753 in Potsdam – 9 June 1820 in Berlin), was the official mistress of King Frederick William II of Prussia from 1769 until 1797 and was elevated by him into the nobility. She is regarded as politically active and influential in the policy of Prussia during his reign.

paragraph_text: Before the advent of the ASA system, the system of Weston film speed ratings was introduced by Edward Faraday Weston (1878–1971) and his father Dr. Edward Weston (1850–1936), a British-born electrical engineer, industrialist and founder of the US-based Weston Electrical Instrument Corporation, with the Weston model 617, one of the earliest photo-electric exposure meters, in August 1932. The meter and film rating system were invented by William Nelson Goodwin, Jr., who worked for them and later received a Howard N. Potts Medal for his contributions to engineering.

paragraph_text: Being a private facility, it is situated inside the Meralco Center at Ortigas Avenue in Pasig City. The transformation of the JFCH into an integrated corporate wellness center made the Manila Electric Company the first corporation in the Philippines to institutionalize the implementation of such a program.

paragraph_text: In 1985, in a campaign initiated by then CBS Musical Instruments division president William Schultz (1926 -- 2006), the Fender Electric Instrument Manufacturing Company employees purchased the company from CBS and renamed it Fender Musical Instruments Corporation (FMIC). Behind the Fender name, FMIC has retained Fender's older models along with newer designs and concepts. The sale however did not include the old Fullerton factory; FMIC had to build a new facility in nearby Corona.

paragraph_text: Electric Café is the ninth studio album by the electronic group Kraftwerk, originally released in 1986. In October 2009 it was re-released under its original working title, Techno Pop. The initial 1986 "Electric Café" came in versions sung in English and German, as well as a limited "Edición Española" release, featuring versions of "Techno Pop" and "Sex Object" with only Spanish lyrics. It was the first Kraftwerk LP to be created using predominantly digital musical instruments, although the finished product was still recorded onto analog master tapes.

paragraph_text: 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.

paragraph_text: Orchestral Favorites is an album by Frank Zappa first released in May 1979 on his own DiscReet Records label. The album is instrumental and features music performed by the 37-piece Abnuceals Emuukha Electric Symphony Orchestra.

paragraph_text: The PP-2000 (Russian: ПП-2000) is a submachine gun/machine pistol made by the KBP Instrument Design Bureau. It was first publicly displayed at the Interpolytech-2004 exhibition in Moscow even though its patent was filed in 2001 and issued in 2003.

paragraph_text: 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.

paragraph_text: The First Seven Days is an album recorded by jazz musician Jan Hammer in 1975. It features extensive use of synthesizers, including the synthesized "guitar" parts (as on his follow-up album, "Oh Yeah?"), with the record jacket stating, "For those concerned: there is "no guitar" on this album." Other instruments used are grand piano, electric violin and percussion.

paragraph_text: The roots of hard rock can be traced back to the 1950s, particularly electric blues, which laid the foundations for key elements such as a rough declamatory vocal style, heavy guitar riffs, string-bending blues-scale guitar solos, strong beat, thick riff-laden texture, and posturing performances. Electric blues guitarists began experimenting with hard rock elements such as driving rhythms, distorted guitar solos and power chords in the 1950s, evident in the work of Memphis blues guitarists such as Joe Hill Louis, Willie Johnson, and particularly Pat Hare, who captured a "grittier, nastier, more ferocious electric guitar sound" on records such as James Cotton's "Cotton Crop Blues" (1954). Other antecedents include Link Wray's instrumental "Rumble" in 1958, and the surf rock instrumentals of Dick Dale, such as "Let's Go Trippin'" (1961) and "Misirlou" (1962).

paragraph_text: Mandolin awareness in the United States blossomed in the 1880s, as the instrument became part of a fad that continued into the mid-1920s. According to Clarence L. Partee, the first mandolin made in the United States was made in 1883 or 1884 by Joseph Bohmann, who was an established maker of violins in Chicago. Partee characterized the early instrument as being larger than the European instruments he was used to, with a "peculiar shape" and "crude construction," and said that the quality improved, until American instruments were "superior" to imported instruments. At the time, Partee was using an imported French-made mandolin.

paragraph_text: George Washington Hough (October 24, 1836 – January 1, 1909) was an American astronomer born in Montgomery, New York. He discovered 627 double stars and made systematic studies of the surface of Jupiter. He designed and constructed several instruments used in astronomy, meteorology, and physics. From 1862 to 1874, Hough was director of Dudley Observatory, Albany, New York. In 1879 he was appointed professor of astronomy at the University of Chicago. He became the director of Dearborn Observatory when the observatory was moved to Evanston, Illinois. He introduced original plans for the dome and electric control for the telescope.

paragraph_text: Manifold vacuum can be used to drive accessories on automobiles. The best-known application is the vacuum servo, used to provide power assistance for the brakes. Obsolete applications include vacuum-driven windscreen wipers and Autovac fuel pumps. Some aircraft instruments (Attitude Indicator (AI) and the Heading Indicator (HI)) are typically vacuum-powered, as protection against loss of all (electrically powered) instruments, since early aircraft often did not have electrical systems, and since there are two readily available sources of vacuum on a moving aircraft—the engine and an external venturi. Vacuum induction melting uses electromagnetic induction within a vacuum.

paragraph_text: Hartmut Briesenick (17 March 1949 in Luckenwalde, Brandenburg – 8 March 2013) was an East German athlete who mainly competed in the men's shot put event.

paragraph_text: The typical symphony orchestra consists of four groups of related musical instruments called the woodwinds, brass, percussion, and strings (violin, viola, cello and double bass). Other instruments such as the piano and celesta may sometimes be grouped into a fifth section such as a keyboard section or may stand alone, as may the concert harp and electric and electronic instruments. The orchestra, depending on the size, contains almost all of the standard instruments in each group.

paragraph_text: A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter.

paragraph_text: First Electric Cooperative is a non-profit rural electric utility cooperative headquartered in Jacksonville, Arkansas. The cooperative was organized April 26, 1937, as the first electric cooperative in Arkansas under the federal Rural Electrification Act of 1935. The cooperative energized its first lines April 15, 1938, near Jacksonville with three employees and 150 members.

paragraph_text: "Trouble No More" is an upbeat blues song first recorded by Muddy Waters in 1955. The song was a hit the following year, reaching number seven in the Billboard R&B chart. Backing Muddy Waters were Jimmy Rogers (electric guitar), Little Walter (amplified harmonica), Otis Spann (piano), Willie Dixon (bass), Francis Clay (drums), a loose group of fellow Chess recording artists, sometimes known as the "Headhunters," who were instrumental in defining Chicago blues.

paragraph_text: Hartmut Enke (20 October 1952 – 27 December 2005) was a German musician, best known as the bass guitarist in Ash Ra Tempel.

Question: When was the first electric instrument that Hartmut Enke plays made?
Answer: the 1930s