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Wurly
The Wurlitzer electronic piano is an electric piano manufactured and marketed by Wurlitzer from 1954 to 1983. Sound is generated by striking a metal reed with a hammer, which induces an electric current in a pickup. It is conceptually similar to the Rhodes piano, though the sound is different. The instrument was invented by Benjamin Miessner, who had worked on various types of electric pianos since the early 1930s. The first Wurlitzer was manufactured in 1954, and production continued until 1983. Originally, the piano was designed to be used in the classroom, and several dedicated teacher and student instruments were manufactured. It was adapted for more conventional live performances, including stage models with attachable legs and console models with built-in frames. The stage instrument was used by several popular artists, including Ray Charles, Joe Zawinul and Supertramp. Several electronic keyboards include an emulation of the Wurlitzer. As the Wurlitzer is an electromechan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wurlitzer
The Rudolph Wurlitzer Company, usually referred to as simply Wurlitzer, is an American company started in Cincinnati in 1853 by German immigrant (Franz) Rudolph Wurlitzer. The company initially imported stringed, woodwind and brass instruments from Germany for resale in the United States. Wurlitzer enjoyed initial success, largely due to defense contracts to provide musical instruments to the U.S. military. In 1880, the company began manufacturing pianos and eventually relocated to North Tonawanda, New York. It quickly expanded to make fairground organ, band organs, orchestrions, player pianos and pipe organs, pipe or theatre organs popular in theatres during the days of silent movies. Wurlitzer also operated a chain of retail stores where the company's products were sold. As technology evolved, Wurlitzer began producing Wurlitzer electric piano, electric pianos, electronic organs and jukeboxes, and it eventually became known more for jukeboxes and vending machines, which are s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawtooth Wave
The sawtooth wave (or saw wave) is a kind of non-sinusoidal waveform. It is so named based on its resemblance to the teeth of a plain-toothed saw with a zero rake angle. A single sawtooth, or an intermittently triggered sawtooth, is called a ramp waveform. The convention is that a sawtooth wave ramps upward and then sharply drops. In a reverse (or inverse) sawtooth wave, the wave ramps downward and then sharply rises. It can also be considered the extreme case of an asymmetric triangle wave. The equivalent piecewise linear functions x(t) = t - \lfloor t \rfloor x(t) = t \bmod 1 based on the floor function of time ''t'' is an example of a sawtooth wave with period 1. A more general form, in the range −1 to 1, and with period ''p'', is 2\left( - \left\lfloor + \right\rfloor\right) This sawtooth function has the same phase as the sine function. While a square wave is constructed from only odd harmonics, a sawtooth wave's sound is harsh and clear and its spectrum cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DeKalb, Illinois
DeKalb ( ) is a city in DeKalb County, Illinois, United States. The population was 40,290 at the 2020 United States census, 2020 census. The city is named after decorated Franconian-French war hero Johann de Kalb, who died during the American Revolutionary War. Founded in 1856, DeKalb became important in the development and manufacture of barbed wire, especially for agriculture and raising livestock. While agricultural-related industries remain a facet of the city, along with health and services, the city's largest employer in the 21st century is Northern Illinois University, founded in 1895. DeKalb is about from downtown Chicago. History DeKalb was originally called Huntley's Grove, and under the latter name was platted in 1853. The name is for Johann de Kalb, Baron Johann de Kalb, a major general in the American Revolutionary War. The first church in DeKalb was organized in 1844. Beginning in 1846, a stage coach traveled from Chicago through DeKalb and Dixon to Galena. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corinth, Mississippi
Corinth is a city in and the county seat of Alcorn County, Mississippi, Alcorn County, Mississippi, United States. The population was 14,622 at the 2020 census. Its ZIP codes are 38834 and 38835. It lies on the state line with Tennessee. History Established in 1853, Corinth was first named Cross City for its location at the junction of the Mobile and Ohio Railroad, Mobile & Ohio and Memphis and Charleston Railroad, Memphis & Charleston railroads, it was renamed Corinth after the famous Corinth, Greek crossroads city. Because of the town’s strategic location, it was a center of contention between Union army, Union and Confederate States Army, Confederate forces during the American Civil War, Civil War and was ultimately occupied by Union troops from 1862 to 1864. Confederate General P. G. T. Beauregard retreated to Corinth after the Battle of Shiloh (April 1862), pursued by Union army, Union Major General Henry Halleck, Henry W. Halleck. General Beauregard abandoned the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headphones
Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear. Headphones are also known as earphones or, colloquially, cans. Circumaural (around the ear) and supra-aural (over the ear) headphones use a band over the top of the head to hold the drivers in place. Another type, known as earbuds or earpieces, consists of individual units that plug into the user's ear canal; within that category have been developed cordless air buds using wireless technology. A third type are bone conduction headphones, which typically wrap around the back of the head and rest in front of the ear canal, leaving the ear canal open. In the context of telecommunication, a headset is a combination of a hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAMM Show
The NAMM Show is an annual trade show in the United States organized by the National Association of Music Merchants (NAMM), which describes it as "the industry’s largest stage, uniting the global music, sound and entertainment technology communities". It is typically held in January at the Anaheim Convention Center in Anaheim, California. Overview One of the world's largest Trade fair, trade shows for music products, NAMM restricts entrance to owners, suppliers, distributors, journalists, employees, endorsed artists, and guests of NAMM member companies. Vendors display products, allowing dealers and distributors to see what's new, negotiate deals, and plan their purchasing for the next six to 12 months. The event attracts famous musicians, many of whom are endorsed by exhibitors and come to promote their own signature models and equipment. A smaller convention, NAMM Summer Session, typically takes place in June or July in Nashville, Tennessee. History NAPDA Convention ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baby Grand Piano
A piano is a keyboard instrument that produces sound when its keys are depressed, activating an Action (music), action mechanism where hammers strike String (music), strings. Modern pianos have a row of 88 black and white keys, tuned to a chromatic scale in equal temperament. A musician who specializes in piano is called a pianist. There are two main types of piano: the #Grand, grand piano and the #Upupright piano. The grand piano offers better sound and more precise key control, making it the preferred choice when space and budget allow. The grand piano is also considered a necessity in venues hosting skilled pianists. The upright piano is more commonly used because of its smaller size and lower cost. When a key is depressed, the strings inside are struck by felt-coated wooden hammers. The vibrations are transmitted through a Bridge (instrument), bridge to a Soundboard (music), soundboard that amplifies the sound by Coupling (physics), coupling the Sound, acoustic energy t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wurlitzer Model 112 Electric Piano 1956
The Rudolph Wurlitzer Company, usually referred to as simply Wurlitzer, is an American company started in Cincinnati in 1853 by German immigrant (Franz) Rudolph Wurlitzer. The company initially imported stringed, woodwind and brass instruments from Germany for resale in the United States. Wurlitzer enjoyed initial success, largely due to defense contracts to provide musical instruments to the U.S. military. In 1880, the company began manufacturing pianos and eventually relocated to North Tonawanda, New York. It quickly expanded to make fairground organ, band organs, orchestrions, player pianos and pipe organs, pipe or theatre organs popular in theatres during the days of silent movies. Wurlitzer also operated a chain of retail stores where the company's products were sold. As technology evolved, Wurlitzer began producing Wurlitzer electric piano, electric pianos, electronic organs and jukeboxes, and it eventually became known more for jukeboxes and vending machines, which are s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Circuit
A short circuit (sometimes abbreviated to short or s/c) is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance. This results in an excessive current flowing through the circuit. The opposite of a short circuit is an open circuit, which is an infinite resistance (or very high impedance) between two nodes. Definition A short circuit is an abnormal connection between two nodes of an electric circuit intended to be at different voltages. This results in an electric current limited only by the Thévenin equivalent resistance of the rest of the network which can cause circuit damage, overheating, fire or explosion. Although usually the result of a fault, there are cases where short circuits are caused intentionally, for example, for the purpose of voltage-sensing crowbar circuit protectors. In circuit analysis, a ''short circuit'' is defined as a connection between two nodes that forces them to be at the sam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal Fatigue
In materials science, fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing striation (fatigue), striations on some parts of the fracture surface. The crack will continue to grow until it reaches a critical size, which occurs when the stress intensity factor of the crack exceeds the fracture toughness of the material, producing rapid propagation and typically complete fracture of the structure. Fatigue has traditionally been associated with the failure of metal components which led to the term metal fatigue. In the nineteenth century, the sudden failing of metal railway axles was thought to be caused by the metal crystallising because of the brittle appearance of the fracture surface, but this has since been disproved. Most materials, such as composites, plastics and ceramics, seem to experience some sort of fatigue-related failure. To aid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
