He is using a parabolic mirror and a cathode ray tube from an old tv to generate DC by utilizing the photoelectric effect happening inside the tube. The 120v appliances are most likely being power by a 6-12vDC to 120volts AC inverter. This is very cool to watch! 🤓 #fyp #like #share #follow | Resonate369

A Cathode Ray Tube is a vacuum tube used to produce images in devices like old televisions, computer monitors, and oscilloscopes. It works by producing a beam of electrons and directing it onto a fluorescent screen. Explanation of Each Labeled Part 1. Electron Gun It is the source of electrons. It consists of a cathode (heated filament) and anode. When the cathode is heated, it emits electrons due to thermionic emission. The anode accelerates the electrons into a narrow beam. 2. Beam of Electron