CATHODE RAY TUBES: Maltese cross, Paddle wheel

CATHODE RAY TUBES: Maltese cross, Paddle wheel

• Different types of Cathode Ray Tubes each comprising a horizontal glass tube fitted with an aluminium plate coated with fluorescent material.
• Cathode rays pass through the slit on the cathode end bent at right angles casting a sharp, bright image across the aluminium plate then deflect when a magnet nears the tube.
  (*A HIGH VOLTAGE SOURCE IS REQUIRED FOR THESE CATHODE RAY TUBES)

(Wikipedia excerpt: .."...A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen.[2] The images may represent electrical waveforms on an oscilloscope, a frame of video on an analog television set (TV), digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer. The term cathode ray was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. ....")