When signal current goes through the primary winding, it generates a magnetic field which induces a voltage across the secondary winding. Connecting a load to the secondary causes an AC current to ...

HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered it in a recent video ...

Once electricity finally reaches your home from the power plant, it's not in the same form that it left in. When power is created at a plant, it's produced at a voltage that's either too low or too ...