Material on technical and commercial activities, letters, public statements, and speeches spanning Sarnoff's entire career. Photos and other documents, including his memorandum on a radio music box, relate to his proposals for the uses of wireless, his ideas on the broad applications of wireless technology and electronics, and the wide range of his public services and interests. Among the topics covered are television, RCA, and NBC. Correspondents include five Presidents of the United States, from Franklin D. Roosevelt to Lyndon B. Johnson.