Straight-in cathode ray tube This product demonstrates the phenomenon that the cathode ray tube moves in a straight line and can be blocked by metal. During the demonstration, A2 emits cathode rays, and a shadow with the same shape as the metal baffle appear on the glass wall of the large-end screen of the ray tube. Bright yellow-green fluorescence appeared on the glaze around the shadow.it can be explained that the cathode ray moves along a straight line, and its ability to penetrate the metal sheet is very weak. The product consists of blister, metal baffle, bracket, cathode, anode, bakelite seat, etc. Demonstration of straight into the cathode ray tube is best carried out in a dark room. Scope of application: Teachers teach in laboratory classrooms to increase students' interest in physics and electricity, Weight: 0.79145952058 Pounds, Manufacturer: Omvial