Electron Technologies, Inc. (ETI) (formerly "Electron Dynamics Division (EDD)", a division of Hughes Aircraft Company), is a high technology company specializing in the manufacture of microwave devices. They are known for their Traveling-wave tubes (TWTs), Traveling Wave Tube Amplifiers (TWTAs) and Electronic Power Conditioner (EPCs) as well as Xenon Ion Propulsion Systems (XIPS). Since its inception, ETI has produced tens of thousands of TWTs. They are currently the only U.S. supplier of space-qualified TWT/TWTAs.