By removing air from a glass tube that contained an anode and ... of great use to me and other experimenters. I mean the cathode-ray tube which I described in 1897”. While Braun died in 1918 ...

An x-ray tube is a simple device; a cathode emits electrons that strike ... For those of you who love glass lathes, tiny handheld spot welders and induction heaters, but don’t want your workshop ...