Editing RCA (section)

===Radio receivers===
Following its founding, RCA acted as the sales agent for a small line of Westinghouse and GE branded receivers and parts used by home constructors, originally for a limited market of [[amateur radio]] enthusiasts. By 1922, the rise of broadcasting had dramatically increased the demand for radio equipment by the general public, and this development was reflected in the title of RCA's June 1, 1922 catalog, "Radio Enters the Home". RCA began selling receivers under the "Radiola" name, marketing equipment produced by GE and Westinghouse under the production agreement that allocated a 60%–40% ratio in output between the two companies. Although the patent cross-licensing agreements had been intended to give the participants domination of equipment sales, the tremendous growth of the market led to fierce competition, and in 1925 RCA fell behind [[Atwater Kent]] as the leader in receiver sales. RCA was particularly hamstrung by the need to coordinate its sales within the limits of the GE/Westinghouse production quotas, and often had difficulty keeping up with industry trends. However, the company made a key advance in early 1924 when it began selling the first [[superheterodyne]] receivers, whose high level of performance increased the brand's reputation and popularity. RCA was the exclusive manufacturer of superheterodyne radio sets until 1930. All RCA receivers were battery powered until late 1927 when plug-in AC sets were introduced, providing another boost in sales.<ref>''Radio Manufacturers of the 1920s: Volume 3'' by Alan Douglas, 1991, pages 1–60.</ref>