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Heathkit OCW-1401
Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath Company. The products over the decades have included electronic test equipment, high fidelity home audio equipment, television receivers, amateur radio equipment, robots, electronic ignition conversion modules for early model cars with point style ignitions, and the influential Heath H-8, H-89, and H-11 hobbyist computers, which were sold in kit form for assembly by the purchaser. Heathkit manufactured electronic kits from 1947 until 1992. After closing that business, the Heath Company continued with its products for education, and motion-sensor lighting controls. The lighting control business was sold around 2000. The company announced in 2011 that they were reentering the kit business after a 20-year hiatus but then filed for bankruptcy in 2012,Swindwa, Julie"Disassembly complete: Heathkit is no more" ''The Herald-Palladium'', 19 July 2012 and under new ownership began restr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronics
Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other Electric charge, electrically charged particles. It is a subfield of physics and electrical engineering which uses Passivity (engineering), active devices such as transistors, diodes, and integrated circuits to control and amplify the flow of electric current and to convert it from one form to another, such as from alternating current (AC) to direct current (DC) or from analog signal, analog signals to digital signal, digital signals. Electronic devices have significantly influenced the development of many aspects of modern society, such as telecommunications, entertainment, education, health care, industry, and security. The main driving force behind the advancement of electronics is the semiconductor industry, which continually produces ever-more sophisticated electronic devices and circuits in respo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Herald-Palladium
''The Herald-Palladium'' is a newspaper distributed in the Southwest Michigan region serving all or part of Berrien, Cass, Van Buren, and Allegan Counties. History The ''Herald-Palladium'' is a merger of many former local newspapers in the twin cities of Benton Harbor and St. Joseph, Michigan. ''Palladium'' predecessors ''Herald-Press'' The ''Herald-Press'' formed in 1916 in St. Joseph from the merger of two other newspapers: * ''The Evening Herald'' was the second venture of ''Palladium's'' founder, Leonard Merchant. In 1877 he moved to St. Joseph and bought an existing newspaper, ''The Traveler and Herald''. He changed its name to ''The St. Joseph Weekly Herald.'' Merchant brought his son, Leonard E. Merchant into the business. They sold it to Ephriam W. Moore around 1900, who turned it into a daily afternoon paper. * ''The St. Joseph Press'' was founded as a weekly newspaper in 1888. In 1905, Ephriam Moore's nephew, Joseph Brewer, bought it and turned it into a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Dollar
The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish dollar, Spanish silver dollar, divided it into 100 cent (currency), cents, and authorized the Mint (facility), minting of coins denominated in dollars and cents. U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green color. The U.S. dollar was originally defined under a bimetallism, bimetallic standard of (0.7734375 troy ounces) fine silver or, from Coinage Act of 1834, 1834, fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, its equivalence to gold was revised to $35 per troy ounce. In 1971 all links to gold were repealed. The U.S. dollar became an important intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode-ray Tube
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a Film frame, frame of video on an Analog television, analog television set (TV), Digital imaging, digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been Williams tube, used as memory devices, in which case the screen is not intended to be visible to an observer. The term ''cathode ray'' was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. In CRT TVs and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster scan, raster. In color devices, an image is produced by con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscilloscope
An oscilloscope (formerly known as an oscillograph, informally scope or O-scope) is a type of electronic test instrument that graphically displays varying voltages of one or more signals as a function of time. Their main purpose is capturing information on electrical signals for debugging, analysis, or characterization. The displayed waveform can then be analyzed for properties such as amplitude, frequency, rise time, time interval, distortion, and others. Originally, calculation of these values required manually measuring the waveform against the scales built into the screen of the instrument. Modern digital instruments may calculate and display these properties directly. Oscilloscopes are used in the sciences, engineering, biomedical, automotive and the telecommunications industry. General-purpose instruments are used for maintenance of electronic equipment and laboratory work. Special-purpose oscilloscopes may be used to analyze an automotive ignition system or to display th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Kit
An electronic kit is a package of electrical components used to build an electronic device. Generally, kits are composed of electronic components, a circuit diagram (schematic), assembly instructions, and often a printed circuit board (PCB) or another type of prototyping board. There are two types of kits. Some build a single device or system. Other types used for education demonstrate a range of circuits. These will include a solderless construction board of some type, such as: * Components mounted in plastic blocks with side contacts, that are held together in a base, e.g. Denshi blocks * Springs on a card board, the springs trap wire leads, or component leads, such as Philips EE electronic experiment kits. These are a cheap and flexible option * Professional type prototyping boards, ( breadboards) into which component leads are inserted, following documentation of the "kit". The first type of kit for constructing a single device normally uses a PCB on which components a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howard Anthony
Howard is a masculine given name derived from the English surname Howard. ''The Oxford Dictionary of English Christian Names'' notes that "the use of this surname as a christian name is quite recent and there seems to be no particular reason for it except that it is the name of several noble families". The surname has a number of possible origins; in the case of the noble family, the likely source is the Norse given name Hávarðr, composed of the elements ''há'' ("high") and ''varðr'' ("guardian"). Diminutives include Howie and Ward. Howard reached peak popularity in the United States in the 1920s, when it ranked as the 26th most popular boys' name. As of 2018, it had fallen to 968th place. People with the given name * Howard Allen (1949–2020), American serial killer * Howard Duane Allman (1946–1971), American guitar virtuoso * Howard Anderson (other), name of several people * Howard Andrew (1934–2021), American poker player * Howard Ashman (1950–1991), Ameri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niles, Michigan
Niles is a city in Berrien County, Michigan, Berrien and Cass County, Michigan, Cass counties in the U.S. state of Michigan, near the Indiana state line city of South Bend, Indiana, South Bend. The population was 11,988 according to the 2020 United States census, 2020 census. It is the larger, by population, of the two principal cities in the Niles-Benton Harbor, Michigan, Benton Harbor Metropolitan statistical area, metropolitan area, an area with 153,797 people. History Niles lies on the banks of the St. Joseph River (Lake Michigan), St. Joseph River, at the site of the French colonization of the Americas, French Fort St. Joseph (Niles), Fort St. Joseph, which was built in 1697 to protect the Jesuit Mission established in 1691. After 1761, it was held by the British colonization of the Americas, British and was captured on May 25, 1763, by Native Americans in the United States, Native Americans during Pontiac's Rebellion. The British retook the fort but it was not re-garrisoned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARRL
The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut. The ARRL represents the interests of amateur radio operators before federal regulatory bodies, provides technical advice and assistance to amateur radio enthusiasts, supports a number of educational programs and sponsors emergency communications service throughout the country. The ARRL has approximately 161,000 members. In addition to members in the US, the organization claims over 7,000 members in other countries. The ARRL publishes many books and a monthly membership journal called ''QST''. The ARRL is the primary representative organization of amateur radio operators to the US government. It performs this function by lobbying the United States Congress, US Congress and the Federal Communications Commission. The ARR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heath Parasol
The Heath Parasol is an American single or two seat, open-cockpit, parasol winged, homebuilt aircraft, homebuilt monoplane. Design and development In 1926, Edward Bayard Heath, a successful American air racer and the owner of an aircraft parts supply business, built the first example of the Heath Parasol, a small, single seat parasol winged airplane using surplus wings from a Thomas-Morse S-4, a World War One fighter trainer, mounted above a steel-tube structure fuselage and powered by a Henderson Motorcycle, Henderson four-cylinder motorcycle engine. This was the prototype for a series of single and two-seat recreational craft that utilized the Clark Y airfoil. In 1929 ''Mechanix Illustrated, Modern Mechanix'' magazine published the plans in a series and the plans were reprinted in their "1930 Flying & Gliding Manual," which in turn has been reprinted periodically by the EAA (Experimental Aircraft Association). Although Heath died in 1931, his Parasol designs remained extremely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Bayard Heath
Edward Bayard Heath (November 17, 1888 – November 1, 1931) was an American Aircraft engineer. Biography He was born on November 17, 1888, in Brooklyn, New York, to Clark Heath and Ada M. Johnson.Illinois Death Index Heath designed and built a series of aircraft starting in 1909 with a Louis Blériot, Bleriot-inspired monoplane. His first flight was on 10 October 1909 in Amsterdam, New York, resulting in a broken landing gear. On July 4, 1910, Heath made $500 in appearance fees and $200 in photograph revenues from his aircraft that flew a 3 feet above the ground. In 1911 Heath went to work for Glen Curtiss in Hammondsport, New York, as a motorcycle mechanic, next to the Curtiss aircraft factory where he built a second aircraft with Walter Eales making short aerial runs. After purchasing the Chicago-based Bates Aeroplane Company in 1912, Heath founded the ''E.B. Heath Aerial Vehicle Co.'', later becoming the ''Heath Airplane Company''. His company produced the ''Heath Feat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
