NAEB Engineering Newsletter (July 1956)

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TV Technical Tips No. 19 by Cecil S. Bidlack, NAEB TV Engineer This column is being written in New York far from our usual base of operations and near the end of a 17-day trip. We know we*re perilously near the deadline for copy for the April Newsletter and hope this reaches Head¬ quarters in time to be included. Before leaving Urbana we had a number of things noted to include in this column. We hope our memory is good for the list we need is safely filed in our desk back home. ***** First we want to mention that before we left Urbana, technical details and a schematic of the WOI-TV Gray Scale Generator were mimeographed and mailed to all our educational TV stations and those closed-circuit studios we had listed with kinescope recorders. We feel sure that our list is not complete so we’d be more than happy to fill a request from anyone we missed who wants this information. We believe 'a gray scale generator is almost a must for kinescope operators, and if you don’t have $1,750.00 to buy one, this one of Keith Ketcham’s may be very useful to you. Talked to Fred Remley of the University of Michigan at the IRE Conven¬ tion and he shares the above opinion. He also added that they improved the stability of operation of their WIGKES Linearity Checker (gray scale genera¬ tor) by regulating the AC power input to this equipment. *****