Ernst Alexanderson
Swedish American electrical engineer (1878-1975) · United States · On the map · Scientists · Died at 97
Ernst Frederick Werner Alexanderson was a Swedish-American electrical engineer and inventor who was a pioneer in radio development. He invented the Alexanderson alternator, an early radio transmitter used between 1906 and the 1930s for longwave long distance radio transmission.
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Alexanderson also created the amplidyne, a direct current amplifier used during the Second World War for controlling anti-aircraft guns.
