Richardson Electronics Ltd provides engineered solutions, power grid, and microwave tubes and related consumables, power conversion, RF and microwave components, high-value flat panel detector solutions, replacement parts, tubes, and service training for diagnostic imaging equipment and customized display solutions. The company's segment includes Power and Microwave Technologies, Green Energy Solutions, Canvys, and Healthcare. The company generates the majority of its revenue from the Power and Microwave Technologies segment, which includes the power grid and microwave tube business and RF, Wireless and Power technologies.