Since 1962, the industry has known Torelco as a partner that supplies superior-quality toroids shipped to you with flawless adhesion to delivery schedules. Toroids from .050 inside diameter to 40 inches outside diameter (larger special order can be done) can be wound using wire sizes from 5 AWG through 46 AWG in open or cased styles, varnish or epoxy encapsulated.

Toroidal transformers are insulated, ring-shaped coils that operate within electronic circuits. Transformers change an alternating current voltage from one level to the next without the need for moving parts. Toroidal transformers have advantages over other shaped transformers. A toroid is more efficient than a traditional transformer, and the toroidal transformer takes up less space.