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TV station equipment: Studio cameras Videotape machines Film chains TV transmitters TV broadcast antennas Satellites Video game consoles: Parent: GE (1919–1932, 1986–1987) Technicolor SA [a] (trademark rights only, 1987–2022) Talisman Brands d.b.a Established Inc. (trademark, since 2022) Divisions: RCA Records NBC RCA/Columbia Pictures ...
The RCA CT-100 was an early all-electronic consumer color television introduced in April 1954. The color picture tube measured 15 inches diagonally. The viewable picture was just 11½ inches wide. The CT-100 wasn't the world's first color TV, but it was the first to be mass produced, [1] with 4400 having been made. [2]
It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test different aspects of broadcast display. The card was created by RCA to be the standard image for their TK-1 monoscope, a simple video camera capable of producing only the image
The result was a lined picture with darkness between each horizontal scanned line, reducing picture brightness and contrast. Larger screen sets often used a spot wobble oscillator, that slightly elongated the scanning spot vertically at high frequency to avoid this line separation effect without reducing horizontal sharpness.
A monochrome image is theoretically continuous, and thus unlimited in horizontal resolution, but to make television practical, a limit had to be placed on the bandwidth of the television signal, which puts an ultimate limit on the horizontal resolution possible. When color was introduced, this necessity of limit became fixed.
Technical advancements of the vestigial side band technique allowed for the opportunity to increase the image resolution. The NTSC selected 525 scan lines as a compromise between RCA's 441-scan line standard (already being used by RCA's NBC TV network) and Philco's and DuMont's desire to increase the number of scan lines to between 605 and 800 ...