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.
Written on back of photograph, ''Doc' Charles David Herrold, father of radio broadcasting.' Established Herrold Laboratories, Herrold College of Engineering. Born Nov. 16, 1875, Fulton, Illinois. Moved to San Jose. Sent 1st wireless telegraph...
