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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 .
RCA Spectra 70 Model 46. RCA was one of a number of companies in the 1960s that entered the mainframe computer field to challenge the market leader International Business Machines (IBM). Although at this time computers were almost universally used for routine data processing and scientific research, in 1964 Sarnoff, who prided himself as a ...
By the 1929 model year, Philco was in third place behind Atwater Kent and Majestic (Grigsby-Grunow Corp) in radio sales. In 1930, the company sold 600,000 radios, grossed $34 million, and was the leading radio maker in the country.
The Museum's collections included more than 80,000 objects related to Philadelphia and regional history, including an estimated 10,000 17th- to 20th-century artifacts transferred from the Historical Society of Pennsylvania art and artifact collection in 2009, 1700 Quaker-related items from Friends Historical Association Collection, and collections reflecting Philadelphia manufacturing, the ...
Atwater has used those Japanese records, along with plants buried in tsunami-deposited sand and dates from the rings of the Washington cedar trees, to piece together that tsunami’s story.
The term All American Five (abbreviated AA5) is a colloquial name for mass-produced, superheterodyne radio receivers that used five vacuum tubes in their design. These radio sets were designed to receive amplitude modulation (AM) broadcasts in the medium wave band, and were manufactured in the United States from the mid-1930s until the early 1960s.
Ad for an Atwater Kent radio receiver in the Ladies' Home Journal (September, 1926) 1916: First regular broadcasts on 9XM (now WHA) – Wisconsin state weather, delivered in Morse Code; 1919: First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917).
American Restoration is an American reality television series airing on the History channel. Produced by Leftfield Pictures, the series is filmed in Las Vegas, Nevada, where it chronicles the daily activities at Rick's Restorations, an antique restoration store, with its owner Rick Dale, his staff, and teenage son, as they restore various vintage items to their original condition.