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Clarence D. Tuska
Clarence Denton "C. D." Tuska (August 15, 1896 – June 30, 1985) was an early radio experimenter and amateur operator, who also became one of the first radio receiver manufacturers. He is best known as the co-founder, along with Hiram Percy Maxim, of the American Radio Relay League (ARRL). He was also the original editor and owner of the amateur radio publication '' QST'', which he subsequently sold to the ARRL in 1919, as part of his reorientation toward professional activities within the radio industry. Early life Tuska was born in New York city, the only child of Ida Anna Ruddell and David Tuska. He lived in Nyack, New York until 1909, when his family moved to Hartford, Connecticut."The Early Years: Part 1 of 3" video from the AWA Museum (Bruce Kelly), uploaded May 6, 2010. (youtube.com) After graduating from high sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive with a respective county. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the United States by both population and urban area. New York is a global center of finance and commerce, culture, technology, entertainment and media, academics, and scientific output, the arts and fashion, and, as home to the headquarters of the United Nations, international diplomacy. With an estimated population in 2024 of 8,478,072 distributed over , the city is the most densely populated major city in the United States. New York City has more than double the population of Los Angeles, the nation's second-most populous city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Circuit
A regenerative circuit is an amplifier circuit that employs positive feedback (also known as regeneration or reaction). Some of the output of the amplifying device is applied back to its input to add to the input signal, increasing the amplification. One example is the Schmitt trigger (which is also known as a regenerative comparator), but the most common use of the term is in RF amplifiers, and especially regenerative receivers, to greatly increase the gain of a single amplifier stage. The regenerative receiver was invented in 1912 and patented in 1914US Patent 1113149A, Edwin H. Armstrong, Wireless receiving system', filed October 29, 1913, granted October 6, 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. It was widely used between 1915 and World War II. Advantages of regenerative receivers include increased sensitivity with modest hardware requirements, and increased selectivity because the Q of the tuned circu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Business Executives
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label that was previously known as Def American * American University, in Washington, D.C. Sports teams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinity College (Connecticut) Alumni
Trinity College may refer to: Australia * Trinity Anglican College, an Anglican coeducational primary and secondary school in , New South Wales * Trinity Catholic College, Auburn, a coeducational school in the inner-western suburbs of Sydney, New South Wales * Trinity Catholic College, Goulburn, a coeducational school in the Southern Tablelands, New South Wales * Trinity Catholic College, Lismore, a coeducational school in northeastern New South Wales * Trinity College Queensland, a theological college of the Uniting Church in Australia, in Auchenflower, Brisbane * Trinity College, Beenleigh, a Roman Catholic coeducational school in Queensland * Trinity College, Gawler, a coeducational multi-school college in South Australia * Trinity College, Melbourne, a residential college of the university of Melbourne * Trinity College, Perth, a Roman Catholic boys' school in Western Australia * Trinity Lutheran College (Queensland), a coeducational school in Ashmore, on the Gold Coast * Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Radio In The United States
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937. It was the first electronic "mass medium" technology, and its introduction, along with the subsequent development of sound films, ended the print monopoly of mass media. During the Golden Age of Radio it had a major cultural and financial impact on the country. However, the rise of television broadcasting in the 1950s relegated radio to a secondary status, as much of its programming and audience shifted to the new "sight joined with sound" service. Originally the term "radio" only included transmissions freely received over-the-air, such as the AM and FM bands, now commonly called "terrestrial radio". However, the term has evolved to more broadly refer to streaming audio services in general, including subscription sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio People
An amateur () is generally considered a person who pursues an avocation independent from their source of income. Amateurs and their pursuits are also described as popular, informal, self-taught, user-generated, DIY, and hobbyist. History Historically, the amateur was considered to be the ideal balance between pure intent, open mind, and the interest or passion for a subject. That ideology spanned many different fields of interest. It may have its roots in the ancient Greek philosophy of amateur athletes competing in the Olympics. The ancient Greek citizens spent most of their time in other pursuits, but competed according to their natural talents and abilities. The "gentleman amateur" was a phenomenon among the gentry of Great Britain from the 17th century until the 20th century. With the start of the Age of Reason, with people thinking more about how the world works around them, (see science in the Age of Enlightenment), things like the cabinets of curiosities, and the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CQ Amateur Radio
''CQ Amateur Radio'' (also known simply as ''CQ'' or ''CQ magazine'', and formerly as ''CQ: The Radio Amateur's Journal'') is a dormant magazine for amateur radio enthusiasts first published in 1945. The English language edition is read worldwide; Spanish language edition is published in Spain, with some translations of articles from the English language edition, and some original European content. The magazine was also published in France with partial translation of the original edition between 1995–2000 (ISSN 1267-2750). Published by CQ Communications, the title is based on the radio call "CQ". Contests and awards ''CQ Amateur Radio'' previously organized, adjudicated, and publishes the results of several annual radio competitions: * CQ World Wide 160 m Contest * CQ World Wide WPX Contest, the CQ World Wide RTTY Contest * CQ World Wide RTTY WPX Contest, the CQ World Wide DX Contest * CQ World Wide VHF Contest. All of these contests allow participation by amateur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LaSalle Extension University
La Salle Extension University (LSEU),De Sola, Ralph (1981). ''Abbreviations dictionary.'' Elsevier, also styled as LaSalle Extension University,The university styled its name as both "La Salle" and "LaSalle" in print mediahttp://aycu21.webshots.com/image/49740/2003713607759164514_rs.jp/ref> was a nationally accredited private university based in Chicago, Illinois. Although the school offered resident educational programs in classes and seminars their primary mode of delivery was by way of distance learning. LSEU was in operation from 1908 until 1982.Bear J, Bear MP (1995). ''Bears' guide to earning college degrees nontraditionally.'' C & B Pub., p. 293. History La Salle Extension University was founded by Jesse Grant Chapline in 1908, and was incorporated under the laws of the State of Illinois. It was originally located at 4046 S. Michigan Avenue (41st Street & Michigan).Staff report (September 5, 1944). School Today! War Cuts High Classes, Adds to Air Training. Lower Grade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hartford Courant
The ''Hartford Courant'' is the largest daily newspaper in the U.S. state of Connecticut, and is advertised as the oldest continuously published newspaper in the United States. A morning newspaper serving most of the state north of New Haven and east of Waterbury, Connecticut, Waterbury, its headquarters on Broad Street in Hartford, Connecticut was a short walk from the Connecticut State Capitol, state capitol. It reports regional news with a chain of bureaus in smaller cities and a series of local editions. It also operates ''CTNow'', a free local weekly newspaper and website. The ''Courant'' began as a weekly called the ''Connecticut Courant'' on October 29, 1764, becoming daily in 1837. In 1979, it was bought by the Times Mirror Company. In 2000, Times Mirror was acquired by the Tribune Company, which later combined the paper's management and facilities with those of a Tribune-owned Hartford WTIC-TV, television station. The ''Courant'' and other Tribune print properties were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmon Motor Car Company
Marmon Motor Car Company was an American Luxury automobile manufacturer founded by Howard Carpenter Marmon and owned by Nordyke Marmon & Company of Indianapolis, Indiana, U.S., and active from 1902 to 1933. It was established in 1902 but not incorporated as the successor of Nordyke Marmon & Company until 1926. In 1933 it was succeeded by Marmon-Herrington, and in 1964 the Marmon brand name was sold to the Marmon Motor Company of Denton, Texas. Marmon-Herrington became the Marmon Group of Chicago, in 1964. Marmon was notable for its various pioneering works in automotive manufacturing, introducing the rear-view mirror, pioneering the V16 engine, and the use of aluminum in auto manufacturing. The historic open wheel ''Marmon Wasp'' race car of the early 20th century was the first to use a single-seater "monoposto" construction layout. Marmon Automobiles Marmon's parent company was founded in 1851, manufacturing flour grinding mill equipment and branching out into other ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atwater Kent
Arthur Atwater Kent Sr. (December 3, 1873 – March 4, 1949) was an American inventor and prominent radio manufacturer based in Philadelphia. In 1905, he invented the Unisparker which combined ignition points, condenser, centrifugal advance mechanism, and distributor in one unit, the system used in virtually every automobile until the development of fully electronic systems in the 1970s and '80s. In 1921, Kent patented the modern form of the automobile ignition coil. Biography Arthur Kent was born on December 3, 1873, in Burlington, Vermont. The Kent family moved to Worcester, Massachusetts in 1881, where they lived at four different locations. His father was a doctor who had also been a machinist. The father maintained a machine shop in Worcester when Arthur was a child. Kent entered Worcester Polytechnic Institute’s freshman mechanical engineering class in the fall of 1895. He was elected treasurer of the class of 1899, but only remained in the position for one semester, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westinghouse Electric (1886)
The Westinghouse Electric Corporation was an American manufacturing company founded in 1886 by George Westinghouse and headquartered in Pittsburgh, Pennsylvania. It was originally named "Westinghouse Electric & Manufacturing Company" and was renamed "Westinghouse Electric Corporation" in 1945. Through the early and mid-20th century, Westinghouse Electric was a powerhouse in heavy industry, electrical production and distribution, consumer electronics, home appliances and a wide variety of other products. They were a major supplier of generators and steam turbines for most of their history, and was also a major player in the field of nuclear power, starting with the Westinghouse Atom Smasher in 1937. A series of downturns and management missteps in the 1970s and 80s combined with large cash balances led the company to enter the financial services business. Their focus was on mortgages, which suffered significant losses in the late 1980s. In 1992 they announced a major restruct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
