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Amperex
Amperex Electronic Corporation was a manufacturer of vacuum tubes and semiconductors.Knight (2007) Brooklyn, New York Originally located at 79 Washington Street in Brooklyn, New York, Amperex was a long-established manufacturer of transmitting tubes when they were acquired by the Dutch firm, Philips, (known more widely as Norelco in the US), around 1955. Philips continued to improve and enlarge the tube plant in New York, but also used the Amperex name to distribute their new line of Dutch-made miniature tubes, (12AX7, 12AU7, 12AT7) to feed the booming U.S. hi-fi market. Classic hi-fi brands such as Marantz, Fisher, and H. H. Scott, Inc., used these tubes. Amperex also produced the 6DJ8, 6922 and 7308 frame grid tubes. Developed by Amperex in 1958 when transistors were beginning to supplant tubes and originally developed for video and radar use, the 6DJ8 also excelled in audio amplifiers needing its high transconductance, and it still has a niche market among audiophiles. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amperex Hicksville
Amperex Electronic Corporation was a manufacturer of vacuum tubes and semiconductors.Knight (2007) Brooklyn, New York Originally located at 79 Washington Street in Brooklyn, New York, Amperex was a long-established manufacturer of transmitting tubes when they were acquired by the Dutch firm, Philips, (known more widely as Norelco in the US), around 1955. Philips continued to improve and enlarge the tube plant in New York, but also used the Amperex name to distribute their new line of Dutch-made miniature tubes, (12AX7, 12AU7, 12AT7) to feed the booming U.S. hi-fi market. Classic hi-fi brands such as Marantz, Fisher, and H. H. Scott, Inc., used these tubes. Amperex also produced the 6DJ8, 6922 and 7308 frame grid tubes. Developed by Amperex in 1958 when transistors were beginning to supplant tubes and originally developed for video and radar use, the 6DJ8 also excelled in audio amplifiers needing its high transconductance, and it still has a niche market among audiophiles. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amperex OA2
Amperex Electronic Corporation was a manufacturer of vacuum tubes and semiconductors.Knight (2007) Brooklyn, New York Originally located at 79 Washington Street in Brooklyn, New York, Amperex was a long-established manufacturer of transmitting tubes when they were acquired by the Dutch firm, Philips, (known more widely as Norelco in the US), around 1955. Philips continued to improve and enlarge the tube plant in New York, but also used the Amperex name to distribute their new line of Dutch-made miniature tubes, (12AX7, 12AU7, 12AT7) to feed the booming U.S. hi-fi market. Classic hi-fi brands such as Marantz, Fisher, and H. H. Scott, Inc., used these tubes. Amperex also produced the 6DJ8, 6922 and 7308 frame grid tubes. Developed by Amperex in 1958 when transistors were beginning to supplant tubes and originally developed for video and radar use, the 6DJ8 also excelled in audio amplifiers needing its high transconductance, and it still has a niche market among audiophiles. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6DJ8
The 6DJ8 is a miniature nine-pin medium gain dual triode vacuum tube. It is distinguished by its very high transconductance, mostly the result of its frame grid construction. Versions of the tube are named ECC88, E88CC, 6922, E188CC, CV4108, 7308, 6N1P and 6N23P. Origins The tube was developed by Philips in the Netherlands under European designation ECC88. The series-string version 7DJ8 / PCC88 was also introduced at the same time. The 6DJ8 was designed for use as a low-noise amplifier in VHF and UHF TV tuners, an improved successor to the usual 6BK7, but due to its high gain it was heavily used in high-end test equipment, for example, most high-quality oscilloscopes from the 1950s to the 1960s utilize a number of 6DJ8 tubes. Audio Although not originally designed for the purpose, it became popular in hi-fi audio amplifiers. European-produced version of the tube is designated ECC88. An industrial (improved/higher ratings) version of the tube was designated 6922 / E88CC betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philips
Koninklijke Philips N.V. (), commonly shortened to Philips, is a Dutch multinational conglomerate corporation that was founded in Eindhoven in 1891. Since 1997, it has been mostly headquartered in Amsterdam, though the Benelux headquarters is still in Eindhoven. Philips was formerly one of the largest electronics companies in the world, but is currently focused on the area of health technology, having divested its other divisions. The company was founded in 1891 by Gerard Philips and his father Frederik, with their first products being light bulbs. It currently employs around 80,000 people across 100 countries. The company gained its royal honorary title (hence the ''Koninklijke'') in 1998 and dropped the "Electronics" in its name in 2013, due to its refocusing from consumer electronics to healthcare technology. Philips is organized into three main divisions: Personal Health (formerly Philips Consumer Electronics and Philips Domestic Appliances and Personal Care), Connect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five major unincorporated territories, nine United States Minor Outlying Islands, Minor Outlying Islands, and 326 Indian reservations. The United States is also in Compact of Free Association, free association with three Oceania, Pacific Island Sovereign state, sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Palau, Republic of Palau. It is the world's List of countries and dependencies by area, third-largest country by both land and total area. It shares land borders Canada–United States border, with Canada to its north and Mexico–United States border, with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batavia, Illinois
Batavia () is a city mainly in Kane County and partly in DuPage County in the U.S. state of Illinois. Located in the Chicago metropolitan area, it was founded in 1833 and is the oldest city in Kane County. Per the 2020 census, the population was 26,098. During the latter part of the 19th century, Batavia, home to six American-style windmill manufacturing companies, became known as "The Windmill City." Fermi National Accelerator Laboratory, a federal government-sponsored high-energy physics laboratory, where both the bottom quark and the top quark were first detected, is located just east of the city limits. Batavia is part of a vernacular region known as the Tri-City area, along with St. Charles and Geneva, all western suburbs of similar size and relative socioeconomic condition. cheetz, George H."Whence Siouxland?" ''Book Remarks'' ioux City Public Library May 1991. History Batavia was settled in 1833 by Christopher Payne and his family. Originally called Big Woo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisenhower Park
Eisenhower Park, formerly known as Salisbury Park, is a public park in East Meadow, New York bordered by Hempstead Turnpike on the south and Old Country Road on the north. At , it is larger than Central Park (in Manhattan, New York City), with much of the area devoted to three 18-hole golf courses, including the Red Course, host to the annual Commerce Bank Championship (Champions Tour). The park is home to the September 11th Memorial for residents of Nassau County. History Part of the county park system since 1944, Eisenhower Park offers a full range of athletic and family activities, including some of the finest facilities in Nassau County and an exciting schedule of summertime events. In the early part of the 20th century, the park was part of the private Salisbury Country Club and included five 18-hole golf courses. It hosted the ninth PGA Championship in 1926, then a match play competition. Walter Hagen defeated future two-time champion Leo Diegel 5 & 3 in the finals to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Meadow, New York
East Meadow is a hamlet and census-designated place (CDP) in the Town of Hempstead in Nassau County, on Long Island, in New York. The population was 38,132 at the 2010 census. Many residents commute to Manhattan, which is away. History In 1655, two surveyors for Hempstead reported that the "east meadow" would be suitable for grazing. The area quickly became a grazing area for cattle and later, in the 18th century, for sheep. The sheep of the East Meadow area provided the country with more than 50% of the United States' wool needs during that time. During the American Revolutionary War, East Meadow was occupied by British forces when they discovered the vast amounts of livestock herded there, and remained under their control until the end of the war. Two large farms existed in what is now East Meadow: the Barnum farm (Barnum Woods), and the Carman farm. It is rumored that President George Washington spent a night on the Barnum estate during a trip across Long Island in 1790. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Smithfield, Rhode Island
North Smithfield is a town in Providence County, Rhode Island, United States, settled as a farming community in 1666 and incorporated into its present form in 1871. North Smithfield includes the historic villages of Forestdale, Primrose, Waterford, Branch Village, Union Village, Park Square, and Slatersville. The population was 12,588 at the 2020 census. Geography According to the United States Census Bureau, the town has a total area of , of which is land and (2.83%) is water. North Smithfield is in a New England upland region. The Branch River and Blackstone Rivers provided much of the power for the early mills in the town. The town consists mainly of temperate forests, with minor elevation changes. At , Woonsocket Hill in North Smithfield is one of the highest points in Rhode Island. Residents can expect mild summers and harsh winters. History In the 17th century British colonists settled in North Smithfield developing a farming community that they named after S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slatersville, Rhode Island
Slatersville is a village on the Branch River in the town of North Smithfield, Rhode Island, United States. It includes the Slatersville Historic District, a historic district listed on the National Register of Historic Places. The historic district has been included as part of the Blackstone River Valley National Historical Park. The North Smithfield Public Library is located in Slatersville. Slatersville was associated with and named for Samuel Slater and John Slater, members of the well-known Slater family. In the late nineteenth century, the Woonsocket and Pascoag Railroad was built through the village, and the line was later acquired by the Providence and Worcester Railroad and run as a freight rail line terminating in Slatersville near a steel distributor by the Slater Mill, rather than its former endpoint in Pascoag. History The region was originally settled in the 17th century by British colonists as a farming community. The village was founded in 1803 by entrepreneu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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