Structure 1. Directly enter the magnetic effect The cathode ray tube is composed of a bulb, a baffle plate, a fluorescent plate, a cathode, an anode, a bakelite seat and the like. 2. The straight-in cathode ray tube is composed of a bulb, a metal baffle, a bracket, a cathode, an anode, a bakelite, and the like. 3. The mechanical effect cathode ray tube is composed of a bulb shell, a rail bracket, a small wing wheel, a garden electrode, a bakelite seat and the like. 4. Electrostatic effect The cathode ray tube is composed of a bulb, a baffle plate, a fluorescent plate, an electric field electrode, a cathode, an anode, a bakelite seat and the like.Demonstrate environmental conditions1. The relative humidity is not more than 80percent.2. Temperature -101.---40 DegreeC. Precautions 1. Vacuum glass products, gently handle, pay attention to protect the bulb and prevent gas failure. 2. Do not use excessive force when connecting the electrodes to avoid damage to the instrument. 3, pay attention to the wiring according to the wiring diagram, proofread the power supply voltage, check the error can be demonstrated.