Quote:
Originally Posted by old_tv_nut
This is the first time I've compared the spectra on that CRT spec to the NTSC standard - I always asumed it matched - but it appears that the red and blue are both more extreme than the NTSC standard says they should be. This needs further study.
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I just looked up a paper on the shadow mask CRT from the January 1954 IRE Proceedings (the NTSC issue). The phosphors there are very slightly different from the graph posted here, but the notable thing is that the dominant wavelength plotted on the chromaticity chart is not the same as the peak wavelength for red and blue. This apparently is because both of them are on the edge of the visible spectrum, and therefore, the wavelengths more toward the center are more effective.