This person scraped phosphor out of a broken fluorescent tube and made several experimental CRTs: https://www.sparkbangbuzz.com/crt/crt6.htm https://www.sparkba

This person scraped phosphor out of a broken fluorescent tube and made several experimental CRTs: https://www.sparkbangbuzz.com/crt/crt6.htm https://www.sparkbangbuzz.com/crt/crt6.htm From the site: "The cathode ray tubes that I am describing here are crude and they are relatively easy to make at home. They are in fact, much easier to build than most technically minded people would ever imagine."