births

Ernst Alexanderson, Swedish-American engineer (died 1975)

Historical image related to Ernst Alexanderson, Swedish-American engineer (died 1975) from January 25, 1878

Ernst Alexanderson

Swedish-American electrical engineer and inventor (1878–1975

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.…
Source: Wikipedia (CC BY-SA)