Voltronics公司是全球精密微调电容器设计和制造的领导者。 Voltronics的工程团队与客户密切合作，开发尖端技术，以满足他们对可变电容器的所有调谐需求。 Voltronics修整器包括空气，玻璃，蓝宝石和PTFE电介质，可在1 MHz至2 GHz以上，电压高达20,000 VDC时使用。

Voltronics还为MRI和NMR行业提供完整系列的非磁性元件，包括微调电容器，贴片电容器，线圈，平衡 - 不平衡转换器，二极管和连接器。 Voltronics强调为工程师提供优质服务，拥有线圈设计师所需的所有非磁性元件。

2014年2月28日，Dover公司将其部分通信技术集团（包括Dielectric Laboratories，Syfer，Novacap和Voltronics）分拆到Knowles Corporation。 

Voltronics Corporation is the world's leader in the design and manufacture of precision trimmer capacitors. Our engineering team works closely with customers to develop leading-edge technologies to solve all of their tuning needs for variable capacitors. Voltronics trimmers include air, glass, sapphire, and PTFE dielectrics that can be used from 1 MHz to over 2 GHz and at voltages up to 20,000 VDC.

Voltronics also offers a complete line of non-magnetic components for the MRI and NMR industries, including trimmer capacitors, chip capacitors, coils, baluns, diodes and connectors. Emphasizing quality service to engineers, Voltronics has all the non-magnetic components coil designers need.

On February 28th 2014, Dover Corporation spun-off a portion of their Communications Technology Group including Dielectric Laboratories, Syfer, Novacap and Voltronics into Knowles Corporation.