"The Alexanderson radio alternator was a high-power, radio-frequency source which provided reliable transoceanic radiotelegraph communication during and after World War I. Ernst F.W. Alexanderson (1878-1975), a General Electric engineer, designed radio alternators with a frequency range to 100 kHz and a power capability from 2 kW to 200 kW.
Society: IEEEMain Category: ElectricalSub Category: CommunicationsEra: 1900-1909DateCreated: 1904General Electic CompanySchenectadyState: NYZip: 12306Country: USAWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Alexanderson_Radio_Alternator,_1904Creator: Alexanderson, Ernst
YearAdded:Image Credit: Public Domain; Produced prior to 1/1/1923Era_date_from: 1904
Society: ASMEMain Category: Electric, MechanicalSub Category: SteamEra: 1940-1949DateCreated: 1949 Plant of General Electric CoSchenectadyState: NYZip: 12306Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/electric-power-production-steam/-100-belle-isle-gas-turbine-%281949%29, http://files.asme.org/asmeorg/Communities/History/Landmarks/5501.pdfCreator: Oklahoma Gas & Electric Company
This unit, retired from the Belle Isle Station of the Oklahoma Gas & Electric Company, was the first gas turbine to be used for electric utility power generation in the United States. It represents the transformation of the early aircraft gas turbine, in which the engines seldom ran more than ten hours at a stretch, into a long-life prime mover. This redesign was based upon creep-rupture tests of S-816 cobalt-base alloys for turbine buckets. The low-cost trouble-free service led to wide-scale adoption of the gas turbine, over 45 million kilowatt capacity (over 9 percent of U.S.
YearAdded:Image Credit: Image Courtesy of ASMEEra_date_from: 1949