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How Toroidal Electrical Transformers Work

Electrical transformers are essentially a coil of electrically conductive wire wound around an iron core, most often a rectangular “EI” core. Some transformers, however, look more like a doughnut, and they are called toroidal transformers. Either construction makes...

Steps In Manufacturing Custom Inductors

At Johnson Electric Coil Company, we work with many different companies with global needs to design and manufacture custom inductors and transformers unique to their specifications. Most of our customers are established OEMs, but we also work with smaller companies,...