Coil Assemblies OPT HELLAS offers custom made to specific requirements Inductive Components , such as: Toroidal Inductors (RF and Power) Bifilar and Trifilar Transformers SMT and Thru holes Pot cores The monitoring of our processesand the test made during the manufacturing steps and at the final verification guarantees that the finished products are in compliance to customer’s specifications. Our goal is to supply quality products in accordance to the specification of the customer at competetive prices .