The first radio telephone transmitting and receiving set which was installed on Commodore Huntington's yacht "Thelma" at Put-in-Bay, Ohio in 1907. The audion box on left with pan-cake turner above the large transmitting case was the first...
Photo of the first radio telephone and telegraph set connected to the 11,500 foot "carpet" aerial. Set was used by Ray Newbry to telegraph 100 miles. Operator and location are not identified.
Communication devices; Men; Radios; Relocation camps; Forced migration; Japanese Americans -- Evacuation and relocation, 1942-1945; World War II, 1939-1945 -- Japanese Americans; Portland Assembly Center (Or.)
Photograph shows a radio shop with evacuees working on necessary repairs at the Portland, Oregon Assembly Center.
De Forest, Lee, 1873-1961; Postcards; Radio--Receivers and reception; San Jose (Calif.); Santa Clara County (Calif.)--History; Technology;
Color postcard of Gilfilan Brothers of Los Angeles cathedral style home broadcast radio receiver. Written on back of postcard, "In the early 1920's, 'wireless' devices used by amateurs were wires and circuitry attached to a wood base, called a...
