The brightest CRTs were those used in CRT projectors. These had the advantage of using three separate monochrome tubes, which meant the whole screen could be coated in phosphor without any gaps, and they were often liquid cooled.
Direct-view color CRTs topped out at about 300 nits, which is IMO plenty for non-HDR content.
Direct-view color CRTs topped out at about 300 nits, which is IMO plenty for non-HDR content.