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Quantegy
Quantegy Inc. was a manufacturer of magnetic tape and professional external hard drives based in Opelika, Alabama. Their tape products were primarily used in analog audio and video recording studios, but they also have some use with digital data storage devices and instrumentation recorders along with some audiophile home hobbyists. The company was created at the end of World War II by Major John Herbert Orr as Orradio Industries. This was a result of the US Army requiring an American supplier of magnetic tape. Magnetic tape was a German invention and after the war, the German manufacturing ability was destroyed. * In 1959, Ampex acquired Orradio Industries and it became the Ampex Magnetic Tape Division. * In 1995, Ampex divested this division, then called the Ampex Recording Media Corporation. At the same time, 3M was also spinning off its magnetic media division. Equitable Life Insurance acquired these combined entitie which became Quantegy Inc., and later changed its name to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampex
Ampex is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name AMPEX is a portmanteau, created by its founder, which stands for Alexander M. Poniatoff Excellence.AbramsoThe History of television, 1942 to 2000– McFarland, 2003 – , page 286, Chapter 2, footnote 34 "1944 he founded Ampex (the name was created from his initials, AMP, plus "ex" for excellence)" Today, Ampex operates as Ampex Data Systems Corporation, a subsidiary of Delta Information Systems, and consists of two business units. The Silicon Valley unit, known internally as Ampex Data Systems (ADS), manufactures digital data storage systems capable of functioning in harsh environments. The Colorado Springs, Colorado unit, referred to as Ampex Intelligent Systems (AIS), serves as a laboratory and hub for the company's line of industrial control systems, cyber security products and services and its artificial intelligence/machine learning technology. Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Herbert Orr
John Herbert Orr (August 19, 1911 – May 6, 1984) was an Alabama entrepreneur who formed Orradio Industries, Inc., a high-technology firm that manufactured magnetic recording tape for both professional and consumer markets. In 1945, Orr was among the U.S. Army Intelligence officials who investigated this technology, which was originally developed in Germany during the 1930s. According to one story, in 1945, General Dwight D. Eisenhower wanted to record a message to the German people, which he did using captured German tape. However, the tape had not been completely erased, and Hitler's voice, so the story goes, could be heard intermittently along with that of Eisenhower. Eisenhower ordered that no more captured tape could be used, and ordered Major John Herbert Orr to use captured German scientists to set up an American tape manufacturing facility. Paper tape was the medium in use at the time, but the German engineers had been experimenting with a plastic based tape; they provid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMGI
Recording Media Group International B.V., sometimes also named as Recordable Media Group International (also known as RMGi) was a Dutch manufacturer of magnetic tape products based in Oosterhout. This plant was initially built by Philips in 1968, and spun off into a joint venture with DuPont, PDM (Philips DuPont Magnetics B.V.) which lasted until 1993. At this point, unknown foreign investor (probably SK of Germany) took over the plant and named the company Magnetic Products Oosterhout B.V. In 2004, the company became known by its current name after acquiring equipment, processes, and talent from EMTEC's Munich plant. For its entire existence, the factory has produced magnetic tape for recording audio and video. Production of video and digital audio tapes were later ended and company concentrated only on production of high-quality analog magnetic tapes for both reel-to-reel and cassette recorders. Production of cassette tape stock (especially for cassette duplication facilities) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reel Deal Pro Audio
A reel is an object around which a length of another material (usually long and flexible) is wound for storage (usually hose are wound around a reel). Generally a reel has a cylindrical core (known as a '' spool'') with flanges around the ends (known as the ''rims'') to retain the material wound around the core. In most cases the core is hollow in order to pass an axle and allow the reel to rotate like a wheel, and crank or handles may exist for manually turning the reel, while others are operated by (typically electric) motors. Construction The size of the core is dependent on several factors. A smaller core will obviously allow more material to be stored in a given space. However, there is a limit to how tightly the stored material can be wound without damaging it and this limits how small the core can be. Other issues affecting the core size include: * Mechanical strength of the core (especially with big reels) * Acceptable turning speed (for a given rate of materia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Videotape
Videotape is magnetic tape used for storing video and usually sound in addition. Information stored can be in the form of either an analog or digital signal. Videotape is used in both video tape recorders (VTRs) and, more commonly, videocassette recorders (VCRs) and camcorders. Videotapes have also been used for storing scientific or medical data, such as the data produced by an electrocardiogram. Because video signals have a very high bandwidth, and stationary heads would require extremely high tape speeds, in most cases, a helical-scan video head rotates against the moving tape to record the data in two dimensions. Tape is a linear method of storing information and thus imposes delays to access a portion of the tape that is not already against the heads. The early 2000s saw the introduction and rise to prominence of high-quality random-access video recording media such as hard disks and flash memory. Since then, videotape has been increasingly relegated to archival and si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Tape Sound Recording
An audio tape recorder, also known as a tape deck, tape player or tape machine or simply a tape recorder, is a sound recording and reproduction device that records and plays back sounds usually using magnetic tape for storage. In its present-day form, it records a fluctuating signal by moving the tape across a tape head that polarizes the magnetic domains in the tape in proportion to the audio signal. Tape-recording devices include the reel-to-reel tape deck and the cassette deck, which uses a cassette for storage. The use of magnetic tape for sound recording originated around 1930 in Germany as paper tape with oxide lacquered to it. Prior to the development of magnetic tape, magnetic wire recorders had successfully demonstrated the concept of magnetic recording, but they never offered audio quality comparable to the other recording and broadcast standards of the time. This German invention was the start of a long string of innovations that have led to present-day magnetic ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Tape Length And Thickness
Since the widespread adoption of reel-to-reel audio tape recording in the 1950s, audio tapes and tape cassettes have been available in many formats. This article describes the length, tape thickness and playing times of some of the most common ones. All tape thicknesses here refer to the total tape thickness unless otherwise specified, including the base, the oxide coating and any back coating. In the United States, tape thickness is often expressed as the thickness of the base alone. However, this varies from manufacturer to manufacturer and also between tape formulations from the same manufacturer. Outside of the US, the overall thickness is more often quoted, and is the more relevant measurement when relating the thickness to the length that can be fit onto a reel or into a cassette. Reel-to-reel ¼" The tape decks of the 1950s were mainly designed to use tape ¼" wide and to accept one of two reel formats: * Ten-and-a-half-inch reels, almost always with metal flanges, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reel-to-reel Audio Tape Recording
Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the ''supply reel'' (or ''feed reel'') containing the tape is placed on a spindle or hub. The end of the tape is manually pulled from the reel, threaded through mechanical guides and over a tape head assembly, and attached by friction to the hub of the second, initially empty ''takeup reel''. Reel-to-reel systems use tape that is wide, which normally moves at . All standard tape speeds are derived as a binary submultiple of 30 inches per second. Reel-to-reel preceded the development of the compact cassette with tape wide moving at . By writing the same audio signal across more tape, reel-to-reel systems give much greater fidelity at the cost of much larger tapes. In spite of the relative inconvenience and generally more expensive media, reel-to-reel systems developed in the early 1940s remained popular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Drive
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data when powered off. Modern HDDs are typically in the form of a small rectangular box. Introduced by IBM in 1956, HDDs were the dominant secondary storage device for general-purpose computers beginning in the early 1960s. HDDs maintained this position into the modern era of servers and personal computers, though personal computing devices produced in large volume, like cell phones and tablets, rely on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATR Magnetics
ATR may refer to: Medicine * Acute transfusion reaction * Ataxia telangiectasia and Rad3 related, a protein involved in DNA damage repair Science and mathematics * Advanced Test Reactor, nuclear research reactor at the Idaho National Laboratory, US * Attenuated total reflectance in infrared spectroscopy * Advanced tongue root, a phonological feature in linguistics * Atractyloside, a toxin and inhibitor of "ADP/ATP translocase" * ATR0, an axiom system in reverse mathematics Technology * Answer to reset, a message output by a contact Smart Card * Automatic target recognition, recognition ability * Autothermal reforming, a natural gas reforming technology Transport * ATR (aircraft manufacturer) an Italian-French aircraft manufacturer ** ATR 42 airliner ** ATR 72 airliner * IATA code for Atar International Airport * Andaman Trunk Road * Air Transport Rack, standards for plug-in electronic modules in aviation and elsewhere; various suppliers e.g. ARINC * Atmore (Amtrak station) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Tape
Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magnetic tape could with relative ease record and playback audio, visual, and binary computer data. Magnetic tape revolutionized sound recording and reproduction and broadcasting. It allowed radio, which had always been broadcast live, to be recorded for later or repeated airing. Since the early 1950s, magnetic tape has been used with computers to store large quantities of data and is still used for backup purposes. Magnetic tape begins to degrade after 10–20 years and therefore is not an ideal medium for long-term archival storage. Durability While good for short-term use, magnetic tape is highly prone to disintegration. Depending on the environment, this process may begin after 10–20 years. Over time, magnetic tape made in the 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
