There he continued studies in microwaves and cathode ray tubes and also worked on the ionosphere research and radio astronomy.
en.wikipedia.org Prior to the renovation, the room used cathode ray tubes for monitors and fax for communication and had computers and telephones with 1985-era technology.
en.wikipedia.org This material, zinc sulfide silver, is still one of the most efficient phosphors in cathode ray tubes.
en.wikipedia.org This included prefabricated buildings, cathode ray tubes, steel structures, aluminum structures, and doors and windows.
en.wikipedia.org Electrons have many applications, including electronics, welding, cathode ray tubes, electron microscopes, radiation therapy, lasers, gaseous ionization detectors and particle accelerators.
en.wikipedia.org