Rhombus Industries Incorporated, founded in 1970, is a privately owned corporation specializing in the design and manufacturing of transformers, inductors, delay lines, filters, and custom magnetics. Their headquarters in Santa Ana, California houses Sales, Engineering, and Research and Development departments, while their manufacturing facility is located in Thailand. Rhombus Industries focuses on providing quality components and innovative designs for various industries such as test & measurement, power supplies, telecommunications, and industrial automation. They offer custom designs tailored to unique customer requirements and ensure the reliability and quality of their products through an extensive quality control program.