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Magnetic Tape Drive
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 can with relative ease record and play back 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. The exception is data tape formats like LTO which are specifically designed for long-term archiving. Information in magnetic tapes is often recorded in tracks which are narrow and long areas of information recorde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Pfleumer
Fritz Pfleumer (20 March 1881 – 29 August 1945) was a German engineer who invented magnetic tape for recording sound. Biography Pfleumer was born on 20 March 1881, in Salzburg, to Robert and Minna Pfleumer (née Hünich). His father Robert (1848–1934) was born in Greiz, and his mother Minna (1846–1932) was born in Freiberg, Saxony, Freiberg. Fritz had five siblings – Mimi, Hans, Hermann, Otto, and Mizi. Hans emigrated to the US. Pfleumer developed a process for putting metal stripes on cigarette papers and reasoned that he could similarly coat a magnetic stripe to be used as an alternative to wire recording. In 1927, after experimenting with various materials, Pfleumer used very thin paper that he coated with iron oxide powder using lacquer as glue. He received a patent in 1928. On 1 December 1932, Pfleumer granted AEG (German company), AEG the right to use his invention when building the world's first practical tape recorder, called Magnetophon K1. It was first demo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RCA Tape Cartridge
The RCA tape cartridge (labeled the RCA Sound Tape Cartridge) is a magnetic tape audio format that was designed to offer stereo quarter-inch reel-to-reel tape recording quality in a convenient format for the consumer market. It was introduced in 1958, following four years of development. This timing coincided with the launch of the stereophonic phonograph record. Specifications The main advantage of the RCA tape cartridge over reel-to-reel machines is convenience.Stereo Goes Back On Tape Popular Mechanics, September 1960, P. 205 The user is not required to handle unruly tape ends and thread the tape through the machine before use, making the medium of magnetic tape more friendly to casual users. In addition, since the cartridge carries both supply and take-up reels, the cartridge does not have to be rewound b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elcaset
Elcaset is an audio format jointly developed by Sony, Panasonic, and Teac in 1976, building on an idea introduced 20 years earlier in the RCA tape cartridge. History In 1976, it was widely felt that the compact cassette was never likely to be capable of the same levels of performance that was available from reel-to-reel systems, yet clearly the cassette had advantages in terms of convenience. The Elcaset system was intended to marry the performance of reel-to-reel with cassette convenience, but be more of a compromise on size between the two than the RCA cassette is. The name "Elcaset" may simply mean L-cassette, or large cassette, since the " tape inside is double the " width found in compact cassettes. They were divided into four tracks. The system is technically sound, but a nearly complete failure in the marketplace, with a very low take-up by a few audiophiles only. Apart from the problem of the bulky cassettes, the performance of compact cassettes had improved dramatically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compact Cassette
The Compact Cassette, also commonly called a cassette tape, audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback. Invented by Lou Ottens and his team at the Dutch company Philips, the Compact Cassette was released in August 1963. Compact Cassettes come in two forms, either containing content as a prerecorded cassette (''Musicassette''), or as a fully recordable "blank" cassette. Both forms have two sides and are reversible by the user. Although other tape cassette formats have also existed—for example the Microcassette—the generic term ''cassette tape'' is normally used to refer to the Compact Cassette because of its ubiquity. From 1983 to 1991 the cassette tape was the most popular audio format for new music sales in the United States. Compact Cassettes contain two miniature spools, between which the magnetically coated, polyester-type plastic film (magnetic tape) is passed and wound—essentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8-track Tape
The 8-track tape (formally Stereo 8; commonly called eight-track cartridge, eight-track tape, and eight-track) is a magnetic-tape sound recording technology that was popular from the mid-1960s until the early 1980s, when the compact cassette, which pre-dated the 8-track system, surpassed it in popularity for pre-recorded music. The format was commonly used in cars and was most popular in the United States and Canada and, to a lesser extent, in the United Kingdom, Ireland and Japan. One advantage of the 8-track tape cartridge was that it could play continuously in an endless loop, and did not have to be ejected, turned around and reinserted to play the entire tape. After about 80 minutes of playing time, the tape would start again at the beginning. Because of the loop, there is no rewind. The only options the user has are play, fast forward, record, and program (track) change. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Follower
In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the brain. Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of to . Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges, allowing some to even hear ultrasounds. Definition Sound is defined as "(a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation. (b) Auditory sensation evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereo-Pak
The Muntz Stereo-Pak, commonly known as the 4- track cartridge, is a magnetic tape sound recording cartridge technology. The Stereo-Pak cartridge was inspired by the Fidelipac 2-track monaural (audio & cue tracks, later 3-track for stereo) tape cartridge system invented by George Eash in 1954 and used by radio broadcasters for commercials and jingles in 1959. The Stereo-Pak was adapted from the Fidelipac cartridge design by Earl "Madman" Muntz in 1962, in partnership with Eash, as a way to play pre-recorded tapes in cars.Jay EhlerEarl Muntz Meets George EashBillboard vol. 84, No. 47, 18 November 1972, p. 62, 76, 78 The tape is arranged in an infinite loop that traverses a central hub and crosses a tape head, usually under a pressure pad to assure proper tape contact. The tape is pulled by tension, and spooling is aided by a lubricant, usually graphite. History The endless loop tape cartridge was designed in 1952 by Bernard Cousino of Toledo, Ohio. Previously, music ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fidelipac
The Fidelipac, commonly known as a "NAB cartridge" or simply "cart", is a magnetic tape sound recording format, used for radio broadcasting for playback of material over the air such as radio commercials, jingles, station identifications, and music, and for indoor background music. Fidelipac is the official name of this industry standard audio tape cartridge. It was developed in 1954"Eash hand-made his own plastic cartridge for his first working unit and in 1954 began showing his unit to record people" ... "What Eash did in the Fidelipac cartridge - a term invented in 1956 by a Toledo advertising agency - was splice tape together.""Car Cartridges Come Home" pp.18-22, '' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reel-to-reel
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 . Domestic consumer machines almost always used or narrower tape and many offered slower speeds such as . 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 inconveni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampex
Ampex Data Systems Corporation is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name ''AMPEX'' is an acronym, 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)" 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 learnin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bing Crosby
Harry Lillis "Bing" Crosby Jr. (May 3, 1903 – October 14, 1977) was an American singer, comedian, entertainer and actor. The first multimedia star, he was one of the most popular and influential musical artists of the 20th century worldwide. Crosby was a leader in record sales, network radio ratings, and motion picture grosses from 1926 to 1977. He was one of the first global cultural icons. Crosby made over 70 feature films and recorded more than 1,600 songs. Crosby's early career coincided with recording innovations that allowed him to develop an intimate singing style that influenced many male singers who followed, such as Frank Sinatra, Perry Como, Dean Martin, Dick Haymes, Elvis Presley, and John Lennon. Yank, the Army Weekly, ''Yank'' magazine said that Crosby was "the person who had done the most for the morale of overseas servicemen" during World War II. In 1948, American polls declared him the "most admired man alive", ahead of Jackie Robinson and Pope Pius XII. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
