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The Armstrong oscillator [1] (also known as the Meissner oscillator [2]) is an electronic oscillator circuit which uses an inductor and capacitor to generate an oscillation. The Meissner patent from 1913 describes a device for generating electrical vibrations, a radio transmitter used for on–off keying. Edwin Armstrong presented in 1915 some ...
Armstrong World Industries, Inc. and NPM Capital N.V. sold Tapijtfabriek H. Desseaux N.V. and its subsidiaries, the principal operating companies in Armstrong's European Textile and Sports Flooring business segment, to NPM Capital N.V. [7] in April 2007. [8] In 2022, AWI had $1.2 billion in revenue. [9] In 2024, it had 3,100 employees and 17 ...
Most regenerative receivers used this Armstrong circuit, in which the feedback was applied to the input (grid) of the tube with a "tickler coil" winding on the tuning inductor. The gain of any amplifying device, such as a vacuum tube , transistor , or op amp , can be increased by feeding some of the energy from its output back into its input in ...
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Armstrong Flooring is a Pennsylvania corporation incorporated in 2016. It was spun off as an independent entity from Armstrong World Industries in April 2016. The company manufactures flooring products in the US in Beech Creek, Pennsylvania; Jackson, Mississippi; Kankakee, Illinois; Lancaster, Pennsylvania; South Gate, California; and Stillwater, Oklahoma; and internationally in Shanghai ...
Armstrong Cork Company eventually moved its headquarters to Lancaster, Pennsylvania. The company's product lines evolved from cork products and Linoleum, to vinyl floors, acoustical ceiling products, and glassware in each of which industries it was at one time a leading producer and brand.