The Cavalcade of America was an anthology drama radio program which aired weekly from 1935 to 1953. The radio show was sponsored by the DuPont Company, a chemical company, which began as a manufacturer of gunpowder in 1802. The DuPont Company created the Cavalcade of America as a promotional tool. The collection consists of photographs relating to the Cavalcade of America radio show. The majority are views of rehearsals or live performances; actors and actresses, including numerous Hollywood celebrities such as Ginger Rogers, Lucille Ball, and Cary Grant; the DuPont Chorus; live audiences; and the production staff.

The Joseph Giardina NBC collection is composed of correspondence, invoices, tests, schematics, and notes related to the broadcasting tower on top of the Empire State Building. The collection also contains correspondence and patents related to Armstrong v. Radio Corporation of America and National Broadcasting Company.

The Radio/TV broadcasting series consists of views of broadcast equipment including parts, components, details, and construction/manufacturing/assembly. The series has been arranged into sixteen subseries: Amplifiers; Antennas; Equipment; Microwave; Modulators; Monitors; Multiplexers; Radio stations; Receivers, transmitters, and transceivers; Speech input; Switches; Television stations; UHF; Video; and Wave form/waveguides. The materials date from circa 1930 to 1977.

The RCA News and Information Department served a public affairs role for RCA corporate headquarters at Rockefeller Center in New York City. The collection contains photographs and negatives created or commissioned by RCA that document much of RCA’s history and activities. Many of the photographs were organized by the News and Information Department into subjects that cover the history of radio, television, communications, and consumer electronics, with a particular emphasis on RCA”s role in that history. Additional photographs are grouped by RCA division and document their specific achievements, with the RCA laboratories being especially prominent. This collection also contains a large number of photographic negatives that were taken by the public relations firm, Carl Byoir & Associates, which showcase many of RCA’s products, events, and facilities.

The Radio Corporation of America (renamed RCA Corporation in 1969) was a major American electronics company founded in 1919. RCA dominated electronics and communications for over fifty years. RCA Rocky Point Station was built as a communication hub known as Radio Central. Radio Central was the largest radio station in the world at one time, and its primary focus was intercontinental communications. This collection documents the activities of RCA Rocky Point Station, including its construction plans, blueprints, reports, and files relating to antenna data and calculations, building systems information, and radio propagation. Rocky Point Station was in operation from 1921 to 1978. This collection would be useful to researchers interested in RCA communications, early radio broadcasting, radio engineering, and radio propagation.

Willard S. Wilson (1897-1979) was a pioneer radio broadcaster and entrepreneur. He was founder of the first commercial radio station in Delaware. This small collection of newspaper clippings, articles, notes, and ephemera document Wilson's knowledge about the history of radio and some of his accomplishments related to the radio station WHAV/WDEL. There are also three reels of film, two related to aviator Charles Lindbergh (1902-1974) and one documenting the arrival of a monument at Wilmington, Delaware marine terminal.