Voltronics Corporation is a leading company in the field of designing and manufacturing the precision trimmer capacitors. We are committed to dealing with all of their tuning needs for variable capacitors. Voltronics trimmers contain air, glass, sapphire, and PTFE dielectrics. In MRI and NMR industries, we supply a full line of non-magnetic components, such as trimmer capacitors, chip capacitors, coils, baluns, diodes, and connectors. Voltronics focus the non-magnetic components coil designers need. Dover Corporation spun off part of its communications Technology group, which includes Dielectric LABS, Syfer, Novacap, and Voltronics, into Knowles Corporation on February 28, 2014. As a result, all product information on our site is now part of Knowles Corporation.