Title :
Conversion unit for projecting 3- by 4-foot television pictures
Author_Institution :
North American Philips Company, Inc., Mount Vernon, N. Y.
Abstract :
PRIOR TO THE advent of common television usage, pictures in the home became popular by the use of home-movie projectors. By a process of evolution the 3- by 4-foot home-movie picture size became an accepted one. These facts would indicate a preference for picture sizes of this order, at least for some types of picture presentations.
Keywords :
Coils; Electron tubes; Receivers; Standards; Switches; TV; Windings;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1950.6434050
