Title supplied by cataloger. J. P. Glenn, technical man of the Southern California Telephone Company, examines one of three video line amplifiers used in conjunction with the transmission of video signals over telephone cable conductors from the studios of Television Productions, Inc., to the Hollywood central office during a field trial of television equipment held at the Hollywood telephone office last night, August 21, 1946.
1 photographic print :b&w ;26 x 21 cm. Photographic prints
Southern California Telephone Co Southern California Telephone Co.--Employees Technological innovations--United States Telephone companies--United States Men--California--Los Angeles Telephones Video amplifiers Video telephone Los Angeles Evening Herald and Express photographs Herald-Examiner Collection photographs