About Thermionics Since 1958 Thermionics has designed, developed, and manufactured ultra high vacuum (UHV) equipment for scientific and industrial applications. Our products are the result of careful research and development, rigorous testing, and continuing performance evaluation. Our commitment to quality and reliability is backed by a 5 year warranty. For new components and systems, or the modification and repair of existing equipment, Thermionics will deliver the best equipment and value to you. Our product lines include: High Vacuum Pumps Manipulators and Mechanical Feedthroughs e-Guns™ Vacuum Coating Systems Valves Flanges and Fittings PyraFlat™ and TriMetal™ Flanges Mechanical Feedthroughs Electrical Feedthroughs Vacuum Pressure Gauges Helium Leak Detectors Let us know how we can help you! Employment Opportunities Thermionics is a growing company with opportunities for personal and professional growth. We are always looking for good people with a sense of humor and a strong work ethic. Please feel free to contact us to talk about a possible position with Thermionics.