Degause a B/W CRT?

[Electronic M]

Originally Posted by ppppenguin

In the UK there were very few metal cone tubes. A few (monochrome) were made in the early 1950s, I very much doubt if degauss coils were commonplace back then.

In the US you had metal cone colour tubes in the 1950s. I presume these needed degaussing along with the shadow mask. I don't know if monochrome metal cone tubes were used in the US.

We did have metal monochrome CRTs in the USA. They were super common almost prevalent (in larger screen sets) from around 1950-52 then they quickly fell out of favor and vanished....they had a tendency to develop leaks and having large metal surface sitting around 15kv was not terribly popular with service techs and consumers who changed their own tubes.