How to TEST a MOSFET Transistor with this SIMPLE Tool for your WORKSHOP. In this TUTORIAL video of easy basic electronic projects we are going to make a homemade tool or homemade invention that is a N-channel MOSFET transistor tester or checker and we will know in a few seconds if it is in good condition or on the contrary to know if it is damaged, Or if it is leaking, with this homemade tool we can test or check hundreds of MOSFET transistors in seconds and find out if they are in poor condition since they are responsible for many breakdowns in hundreds of electrical devices and household appliances, washing machines, dryers, ovens, etc. monitors, televisions, hobs, refrigerators ETC. We are going to assemble everything in an electrical box that can be recycled from any old electrical installation, the elements that we are going to use are, a push button or switch, a led diode, three electrical resistances of different values, a BUZZER or buzzer, a battery holder, a 9v battery, a recycled connector from a pc source, and what we always use, tin, soldering iron or soldering iron, recycled electrical cable from an electrical appliance or household appliance, some glue to stick the elements and little else, you also have the scheme electric the circuit and I will give you a basic explanation of the circuit so that you can understand it easily, it is a totally homemade tool that cannot be missing in your electronics workshop since it will help you a lot with the repairs of many electrical appliances and household appliances If you like the video don't forget to leave your LIKE thanks..