"Description of an Experimental Television System and the Kinescope" in Proceedings of the Institute of Radio Engineers.

Zworykin, V.K.

Publication Date: 1933

About this Item

Zworykin, V.K. "Description of an Experimental Television System and the Kinescope" in Proceedings of the Institute of Radio Engineers, volume 21, number 12, December 1933, pp 1652-1654 and pp 1655-1673 in the issue of pp 1621-1762. Original wrappers. VG copy, with some slight discoloration on the front mid-right wrapper, and some scuffing along the top and bottom spine ends. [++] Also found in this full issue: Engstrom, "An Experimental Television System" (pp 1655-1657); Engstrom, "A Study of Television Image Characteristics"; Kell, R.D. "Description of Experimental Television Transmitting Apparatus. [++] Abstract: "A general description is given of an experimental television system using a cathode ray tube (kinescope) as the image reproducing element in the receiver. The fundamental considerations underlying the design and use of the kinescope for television are outlined. A description of the circuits associated with the kinescope and an explanation of the application to an experimental receiver are included." [++] "By 1933 a complete electronic system was being employed with a resolution of 240 lines. Reportedly, Zworykin told RCA president David Sarnoff that it would take $100,000 to perfect television. Sarnoff later told the New York Times, RCA spent $50 million before we ever got a penny back from TV. During the first half of 1932, an experimental television system had been used in New York using a studio scanning apparatus. This consisted of a mechanical disk, flying-spot type, for an image of 120 lines. Even for small areas of coverage and for 120 lines, the resulting signal amplitude was unsatisfactory. In the Camden system, an iconoscope was used as the pick-up device. The use of the iconoscope permitted transmission of greater detail, outdoor pick-up, and wider areas of coverage in the studio. Experience indicated that it provided a new degree of flexibility in pick-up performance, thereby removing one of the most technical obstacles to television. After many years of research and development an all-electronic television system emerged from the laboratory in 1933 for actual field tests. These tests were carried out at Camden (New Jersey), using a video transmitter and connected to it by a coaxial line. Iconoscopes (television cameras) were used to pick up scenes both in the studio and out-of-doors."--Early Television Foundation [++] It is interesting to note that one of the numerous photos and drawings depicts an image on the tv screen, which is relatively early for this sort of thing. Seller Inventory # ABE-1710874884876

Bibliographic Details

Title: "Description of an Experimental Television ...

Publication Date: 1933

Binding: Soft cover

Condition: Good