Ampex machine's high price tag. Ampex sold only about 50 or 60 ATR-124 machines, and withdrew from the professional audio tape recorder market entirely in 1983. By the 1990s, Ampex focused more on video recorders, instrumentation recorders, and data recorders. In 1991, Ampex sold their professional audio recorder line to Sprague Magnetics. The Ampex Recording Media Corporation spun off in 1995 as Quantegy Inc.; that company has ceased producing recording tape. Starting in the early 1950s, RCA, Bing Crosby and others tried to record analog video on very fast-moving magnetic tape. As early as 1952, Ampex developed prototype video tape recorders
Radio Recorders single engineer on duty. Most of the major labels used Radio Recorders well into the 1960s. RCA Victor, Columbia, Capitol, and Decca ultimately had their own facilities, but Radio Recorders was still the choice of many independent labels and both popular and classical artists, from Stravinsky to Elvis. In addition, most of the jingles were recorded there. In 1946, the company remodeled a warehouse at 1032 North Sycamore Avenue and built a large studio, capable of handling approximately fifty musicians. This studio was known as Radio Recorders Annex, or, within the industry, just "The Annex." The warehouse originally belonged to