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Valve Amplification Company (VAC) is a U.S. supplier of high end audio electronics, principally utilizing vacuum tube technology. It was founded in 1990 by Kevin Hayes (b. 1959) and Channing W. Hayes (1923–2009). A Florida corporation, as of 2011 it is located in Sarasota, Florida, U.S.
The first product produced under the trade mark "Eimac" was the 150T power triode. Later tubes include the 3CX5000A7 power triode and the 4X150D tetrode. The new company thrived during World War II by selling tubes to the U.S. military for use in radar equipment. [2]
Sylvania was also a manufacturer of both vacuum tubes and transistors. In 1942, the company changed its name to Sylvania Electric Products Inc. During World War II, Sylvania was chosen from among several competing companies to manufacture the miniature vacuum tubes used in proximity fuze shells due to its quality standards and mass production ...
The company was established in 1889 as the Ya. M. Aivaz (Russian: Я. М. Айваз) Factory. [4] Svetlana was a major producer of vacuum tubes.In 1937, the Soviet Union purchased a tube assembly line from RCA, including production licenses and initial staff training, and installed it on the St Petersburg plant. [5]
This bestselling 'lightweight but sturdy' Shark vacuum is back in stock at Walmart and it's on sale for just $97. AOL Staff. November 4, 2024 at 9:10 PM.
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Type: Cordless stick Color options: Gold Weight: 6.83 pounds Yes, the Dyson V15 Detect Absolute is the priciest vacuum on the list, but it comes with so many new and improved fixings.
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