Founded in 1940, National Magnetics Group is a manufacturer of technical ceramics and powdered iron cores. Its products include ferrites, filters, differential mode and output chokes, high-frequency noise suppression devices inductors, and small-signal and rotary transformers. National Magnetics Group also offers magnetic power circuits, high-frequency welding systems accelerator cores, pulse shapers, thin film substrates and recording heads. It serves the telecommunications, automotive, aerospace, computer, medical, consumer electronics and scientific industries. National Magnetics Group employs a staff of more than 60 people. Its subsidiary, TCI Ceramics, is a manufacturer of magnetic and advanced materials. TCI Ceramics products include garnets, dielectric resonators, hexagonal ferrites, custom powders and thermal barrier coatings.