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#29

05-17-2021, 07:25 PM

old_tv_nut old_tv_nut is offline

See yourself on Color TV!

Join Date: Jul 2004

Location: Rancho Sahuarita

Posts: 7,776

Here's a 1952 patent applicatioin (granted in 1955) from RCA for magnetic convergence.
https://patents.google.com/patent/US2707248

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