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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 radio, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...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 so as 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 ... [...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 previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * B ... [...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 * Trinit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Radio
The early history of radio is the history of technology that produces and uses radio equipment, radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting. Discovery In an 1864 presentation, published in 1865, James Clerk Maxwell proposed theories of electromagnetism, with mathematical proofs, that showed that light and predicted that radio and x-rays were all types of electromagnetic waves propagating through free space. Between 1886 and 1888 Heinrich Rudolf Hertz published the results of experiments wherein he was able to transmit electromagnetic waves (radio waves) through the air, proving Maxwell's electromagnetic theory. [...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 wri ... [...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 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 translation Translation is the communication of the Meaning (linguistic), meaning of a #Source and target languages, source-language text by means of an Dynamic and formal equivalence, equivalent #Source and target languages, target-language text. The ...s 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 and 2000 (ISSN 1267-2750). Published by CQ Communications, the title is based on the CQ (call), CQ call. Contests and awards ''CQ Amateur Radio'' organizes, adjudicates, and publishes the results of several annual Contesting, radio competit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LaSalle Extension University
La Salle Extension University (LSEUDe 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 Grades Ga ... [...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 considered to be 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, its headquarters on Broad Street in Hartford, Connecticut is a short walk from the 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 television station. The ''Courant'' and other Tribune print properties were spun off to a new corporate parent, Tribune Publishing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmon Motor Car Company
Marmon Motor Car Company was an American automobile manufacturer founded by Howard Carpenter Marmon and owned by Nordyke Marmon & Company of Indianapolis, Indiana, US. It produced luxury automobiles from 1902 to 1933. It was established in 1902 but not incorporated as the successor of Nordyke Mormon & 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 Automobiles Marmon's parent company was founded in 1851, manufacturing flour grinding mill equipment and branching out into other machinery through the late 19th century. Small limited production of experimental automobiles began in 1902, with an air-cooled V-twin engine. An air-cooled V4 followed the next year, with pioneering V6 and V8 engines tried over the next few years, before more conventional straight engine designs were settled upon. Marmons soon ... [...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 1921, he 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, because he did not attend recitation classes after the mid-year exams in January. Kent excelled in mechanics and drawing, but was weak in chemistry, algebra, and language, and had no interest in these subjects. He was already running a small business and tha ... [...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. It was originally named "Westinghouse Electric & Manufacturing Company" and was renamed "Westinghouse Electric Corporation" in 1945. The company acquired the CBS television network in 1995 and was renamed "CBS Corporation" until being acquired by Viacom in 1999, a merger completed in April 2000. The CBS Corporation name was later reused for one of the two companies resulting from the split of Viacom in 2006. The Westinghouse trademarks are owned by Westinghouse Electric Corporation, and were previously part of Westinghouse Licensing Corporation. The nuclear power business, Westinghouse Electric Company, was spun off from the Westinghouse Electric Corporation in 1999. History Westinghouse Electric was founded by George Westinghouse in Pittsburgh, Pennsylvania, on January 8, 1886. The firm became active in developing electric infrastructure throughout the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
