1953 NTSC Color Gamut

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Recently we re-read the RCA VS PHILCO court case, Re: Apple Tube. Philco built many CRT’s and each had unsatisfactory tech notes from the engineers, too hazy, fringe, rosey cast, green cast, bullseye, etc., and labeled unsatisfactory. As evidence, the lawyers showed photographic exhibits of screenshots of the Apple tube and an industry standard fruit bowl image used by Philco, Westinghouse, GE, RCA, Admiral and others.

I found the fruit bowl image and believe it to be a reproduction of the original NTSC color image from an unknown color CRT, but probably RCA’s image from their prototype 15GP22.



Here is a prototype Philco with a “rosey” image of the same fruit bowl. We found an image at last.



I’d like to order up a copy of the court transcript from the National Archives, hopefully to retrieve reproductions of the various screenshot images. However the transcript may only mark the photographs as EXHIBIT A,B, C and so on.

EDIT: An excellent link with additional images and commentary.
https://sterneworks.org/Mulvin-Sterne-Scenes.pdf

EDIT: 1949 RCA
https://visions4netjournal.com/wp-co...1A8942AA2.webp

1950 RCA
https://visions4netjournal.com/wp-co...F02E14EAA.webp

One more: Faye Emerson screenshot off RCA experimental television during a later trial to the public.