Westinghouse K840CK15 Restoration

[old_tv_nut]

By the way, the development of the color-splitting dichroic mirrors for color TV cameras is attributable to Mary Ellen Widdop at RCA. She presented a paper to the SMPTE in October 1952 (published in the Journal of the SMPTE in April 1953), but her work doesn't even get a footnote in the NTSC and IEEE publications on color TV. They present spectral curves with no personal attribution, which I think is a shame. Without her work, the early color cameras would have been even less sensitive than they were and would have required levels of lighting close to the original Technicolor.