How Do You Build A Simple Step Up/Down Transformer?
A transformer is an electrical device that transfers alternating current from an energized circuit to a circuit that otherwise has no current. A step-up transformer generates a higher voltage in the secondary circuit than in the source circuit. A step-down transformer does the opposite. In either case, the energized circuit magnetizes material in the transformer, which in turn creates an electromotive force in the secondary circuit, thus creating another alternating current. Strip the ends of two long (around two feet each) insulated wires. Scissors or a knife will suffice for this job. Check the metal of the steel bolt or screwdriver you’ll be using to make sure it’s magnetizable. For example, see if a kitchen magnet sticks to it. Wrap each wire dozens of times around the metal part of a steel screwdriver or a large steel bolt, leaving the ends exposed. They can overlap and the spacing doesn’t matter. Keep track of which ends belong to which wire. Don’t wrap them the same number of tu
