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For other uses, see Jukebox (disambiguation).
A jukebox is a partially automated music-playing device, usually a coin-operated machine, that can play specially selected songs from self-contained media. The traditional jukebox is rather large with a rounded top and has colored lighting on the front of the machine on its vertical sides. The classic jukebox has buttons with letters and numbers on them that, when combined, are used to indicate a specific song from a particular record.
[edit] HistoryCoin-operated music boxes and player pianos were the first forms of automated coin-operated musical devices. These were soon followed in the 1890s by coin-operated phonographs.[1][2] The introduction of recording on wax cylinder records made possible records which could survive many plays, and early operators converted cylinder phonographs to accept a coin, usually a nickel, which unlocked the mechainsm, allowing the listener to turn a crank which simultaneously wound the spring motor and placed the reproducer's stylus in the starting groove. Frequently exhibitors would equip many of these machines with listening tubes (acoustic headphones) and array them in "phonograph parlors" allowing the patron to select between multiple records, each played on its own machine. Some machines even contained carousels and other mechinisms for playing multiple records. However, by the early 1900s the novelty of the phonograph wore off and this, combined with the advent of phonographs in the home, as well as the increasing sophistication and volume of mechanical orchestrions in public facilities, led to the decline of the coin-operated phonograph industry. The advent of electrical recording and amplification led to a resurgence of the coin-operated phonograph. One of the first successful selective jukeboxes was an automatic phonograph produced in 1927 by the Automated Musical Instrument Company, later known as AMI. With the passage of time the and development of technology new products are manufactured and consequently in 1928, Justus P. Seepburg, who manufactured player pianos, created an electrostatic loudspeaker combined with a record player that was coin operated and gave the listener a choice of eight records.[3] The shellac 78 rpm record dominated jukeboxes until the Seeburg Corporation introduced an all 45 rpm vinyl record jukebox in 1950. The term "juke box" came into use in the United States around 1940, apparently derived from the familiar usage "juke joint", derived from the Gullah word "juke" or "joog" meaning disorderly, rowdy, or wicked. This term, like thousands of words in the Gullah language, likely originated in Western Africa near Sierra Leone[4] and is akin to the Wolof dzug and Bambara dzugu[5]. Wallboxes were an important, and profitable, part of any jukebox installation. Basically a remote control, they enabled patrons to select tunes from their table or booth. The most famous is the Seeburg 3W1, introduced in 1949 as companion to the new 100-select Model M100A jukebox. Stereo sound became popular in the early 1960s, and wallboxes of the era were designed with built-in speakers to provide patrons a sample of this latest technology. Interestingly, for the next several years, there were very few stereo 45 rpm records made; the "little LP" (also referred to as "stereo 7") was designed and manufactured specifically for jukeboxes. It played at 33 1/3 rpm and was the same physical size as the 45 rpm records, to retain compatibility with the jukebox mechanisms. Some jukeboxes during this time were able to play other special 33 discs of 45 size, which provide a longer song or multiple songs, for a higher price. These specialty records (known as EPs, for "extended play") were provided by the unique vendor that supplied records to the operator. Those decades also produced models with ornate lighting, disco and psychedelic effects, and other cosmetic improvements while the internal mechanisms remained moderately stable by comparison. Song-popularity counters told the operator the number of times each record was played (A and B side were generally not distinguished), with the result that popular records remained, while lesser-played songs were replaced with the latest hits. Jukeboxes and their ancestors were a very profitable industry from the 1890s on. They were most popular from the 1940s through the mid-1960s, particularly during the 1950s. By the middle of the 1940s, three-quarters of the records produced in America went into jukeboxes.[6] Today they are often associated with early rock and roll music, but were very popular in the swing music era as well. As a result, stores and restaurants with a retro theme, such as the Johnny Rockets chain, include jukeboxes. Starting in the 1980s, compact discs became the norm for modern jukeboxes. Towards the end of the 20th century several companies started introducing completely digital jukeboxes which did not use physical recordings. The music selection and playback system was replaced by a dedicated proprietary computer. A selection of songs suitable to the venue where the jukebox is located are generally cached in the local storage of the machine. The true advantage of this design is the seemingly endless selection of music available instantly to the customer by automatic download from an internet connection. [edit] Aesthetic styleThe first jukeboxes were simply wooden boxes with coin slots and a few buttons. Over time they became more and more decorated, using color lights, rotating lights, chrome, bubble tubes, ceiling lamps, and other visual effects. Many consider the 1940s to be the "golden age" of jukebox styling with the gothic-like curvaceous "electric rainbow cathedral" look. World War II and the Great Depression were over, so the new designs and sales choices reflected the festive mood. The first model manufactured after WWII was the Model A, produced by AMI. Affectionately referred to as the "Mother of Plastic", it featured large areas of opalescent plastics and colored gemstones. Styling progressed from the plain wooden boxes in the early thirties to beautiful light shows with marbelized plastic and color animation in the Wurlitzer 850 Peacock of 1941. But after the United States entered the war, metal and plastic were needed for the war effort. Jukeboxes were considered "nonessential", and none were produced until 1946. The 1942 Wurlitzer 950 featured wooden coin chutes to save on metal. At the end of the war, in 1946, jukebox production resumed and several "new" companies joined the fray. Reproduction Wurlitzer 1015 in the Hotel Nacional de Cuba, Havana They did not last.The Wurlitzer model "1015-Bubbler" typifies the look and is arguably the most popular jukebox design of all time. Many of these survived into the '50s in active use and are instead associated with the '50s in pop culture despite their '40s origin because of their unique visual prominence and production volume. Designed by stylist Paul Fuller, it is rumored that when entertainment equipment factories were redirected toward the war effort, Paul had more time to focus on aesthetic design. This extra time resulted in one of the greatest designs in iconic pop culture. After the '40s, the styles generally became more box-like and "high-tech" in look, distancing themselves from "classic" influences such as ancient Greek, renaissance, and Gothic motifs found in the '40s models. Also, the post-'40s models needed more panel space for the increased number of record titles they could present on selection buttons, reducing the space available for decoration. This is partly due to improved record storage and dispatching technology and partly due to the transition from the 78-rpm disks to the 45-rpm disks, which were more compact. Jukeboxes from the 1940s are called Golden Age because of the yellow catalin plastic. Jukeboxes from the 1950s are called Silver Age because of the predominant chrome styling. "Rock-Ola" is actually based on the name of the company founder, David Cullen Rockola, and is not a portmanteau of Rock and Victrola. Rock-ola was founded many years before the term "Rock" was applied to music at all. . [edit] MechanismThere are basically two operating formats, Toroidal selector, and Pin selector. Most Juke Boxes use a pin type memory selector system. [edit] SystemsN.S.M. (Napps, Shultz, Manga). Built in Germany came in both operating formats, Toroidal selector, and Pin selector, while Seeburg use the Toroidal system exclusively. It needs to be noted that Seeburg sued N.S.M. for infringement of copyright patent which is why there are two types of selector systems within the N.S.M. range. N.S.M. came to an arrangement with Seeburg and so reverted back to the Toroidal system that is generally accepted to be a much superior system. [edit] ToroidalA toroid is a piece of ferrite and has the unique quality of being in a state of activity. It is shaped in bead type fashion and its magnetic field is either clockwise or anti clockwise. The toroid can be “spun” in either direction by inducing an E.M.F. through its centre. This effect is used as a memory device. Passing a voltage from left to right causes the toroid to spin clockwise, passing a voltage right to left causes the toroid to spin anti clockwise. [edit] Write in sequenceSelections are chosen by pressing the desired keys (letter and number). This operates a double pole double throw-sliding switch. One side of the switch goes to the memory (toroid) the second side of the switch operates the N 1.2.3.4. Motor. The selector rail is wired in a way so as to defeat cheatin, i.e. pressing two numbers or two letters together (Series connection). Both the letters and numbers pass through the toroid. As described in the credit section the A.K. Wipe contacts close. A 150-volt pulse is passed across this contact. Through the numbers and letter switches then through the toroid thus spinning it in a clockwise direction. A memory has been generated. A zenner diode within the control centre stabilises this voltage. TIP. Multiple selection problems can be caused through the breakdown of the zenner diode. Free hand drawing of a section of the toroid selection system chosen selection D1 [IMG]http://i160.photobucket.com/albums/t171/taylorraymond/tornamat.gif[/IMG] [edit] CreditPassing a coin through the coin entry takes away the coin control from the customer. It passes onto a mechanical coin mechanism. The coin is measured, weighed, tested for metal content and man made washers; it is then diverted along the coin value route [IMG]http://i160.photobucket.com/albums/t171/taylorraymond/coinmechinsit.jpg[/IMG] Showing the coin mech in place. The top button to add credit, the lower button to subtract credit [edit] Credit 2After passing through the mech the coin hits a coin paddle/switch this energises a small solenoid within the credit control unit. This advances a 4-sprocket credit wheel arrangement. Wheel one; 5 p Wheel 2 10 p Wheel 3 20p Wheel 4 50p remember 1970s, depending on the credit given is dependent on the coin offered. Bonus credit could be 1 play for 5 p 2 plays for 10 p 5 plays for 20p and a staggering 15 plays for 50 p. Once credit was established through closing the A.K. contacts the 30-volt credit circuit was activated, lighting the credit lamp and energising the latch bar solenoid. [IMG]http://i160.photobucket.com/albums/t171/taylorraymond/creditunit2.jpg[/IMG] [edit] Selection cycleAs you look at the menu of selections the letters 0 and I are missing…this has two purposes 1; ambiguity 2; required layout. The layout of the keyboard is in the 160 selection mode, A…to…K = 10 letters and L…TO…V = 10 letters. 1…to…8 = 8 numbers. Therefore 20x8 = 160 selections 80 A sides and 80 B-sides. As the latch bar solenoid is energised the letter and number keys can be operated. As the name suggests, the keys when pressed are latched. The pre- selection cycle begins. The N1,2,3.4 motor is energised, (situated on the left hand side of the record magazine) N1 are the carry over contacts,N4 operates the subtract solenoid, N3 is used as the latch bar hold. As the N1,2,3,4 motor turns it closes the scan contacts, (situated next to the N1.N2,N3,N4 contacts)this function allows the carriage to scan. As the subtract solenoid operates this causes the write in arm that is attached to the subtract solenoid to close (wipe) across the write in contact. The N3 contact opens and de-latches the key bank, if credit is still established it will re-energise the latch bar solenoid on completion of the N1,2,3,4 motor cycle. 4 scans are made, 2 up, 2 down reversing levers are situated on either side of the magazine. The reversing switches are situated on the rear of the magazine behind the N1,2,3,4, motor assembly. As the carriage scans it operates the reversing levers and allows the scan contact pecker to rise one step, on its second traverse the pecker rises totally opening the scan contacts. There are four scans because a selection made down stream may be chosen first and a new selection upstream may be then chosen so this avoids missed selections. [IMG]http://i160.photobucket.com/albums/t171/taylorraymond/n1234.jpg[/IMG] [edit] Notable Models
[edit] References
[edit] External links
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