Broadcasting (Oct - Dec 1950)

Record Details:

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FM TV RCA-8021, used in 5-kw TV Irammitters RCA-5592, i/sed in 50-kw f-M transmitters RCA-5671, has thoriated-tungsten filament, used in 50-kiv AM transmitters l/ir/ue 8eyo^^Pr/ce The three tubes illustrated are striking examples of RCA's pioneering in modern tube development . . . the kind of engineering leadership that adds value beyond price to the RCA tubes you buy. The RCA-8D21 employs advanced principles of screening, cooling, and electron optics as revolutionary as television itself. The RCA-5 592, with its "metal header" construction, requires no neutralization in grounded-grid circuits. The high-power tube RCA5 6" 1 successfully emplovs a thoriated-tungsten filament that draws 60% less filament power than similar mngsten-filament types. This tube is establishing exceptional records of life performance. RCA's unparalleled research facilities, engineering background, and manufacturing experience contribute to the quality, dependability, and operating economy of every RCA tube you buy. This unusual combination of research, engineering, and manufacturing leadership explains why RCA tubes are accepted as the Standard of Comparison in broadcasting. The complete line of RCA tubes is available from your local RCA tube distributor, or direct from RCA. The world's most modern tube plant. RCA, LANCASTER, PA. THE FOUNTAINHEAD OF MODERN TUBE DEVELOPMENT IS RCA RAD to CORPORATtOM of AMERtCA ELECTRON TUBES HARRISON, N.J. OADCASTING • Telecasting December 11, 1950 • Page 31