Greenray Industries is a leading manufacturer of precision crystal oscillators. With over 45 years of experience, our high performance frequency control devices are designed for demanding applications from 1 Hz to 1 GHz. ......Greenray Industries is a leading manufacturer of precision crystal oscillators. With over 45 years of experience, our high performance frequency control devices are designed for demanding applications from 1 Hz to 1 GHz. We are ISO 9001:2000 certified, and all products are designed, assembled and tested at our facility in Mechanicsburg, Pennsylvania. Our Product Capabilities Greenray product capabilities include OCXOs, TCXOs, VCXOs, and clock oscillators. We manufacture SMT, thru-hole, hybrid and custom products. Engineering Focus Greenray is committed to providing tight stability oscillators that satisfy the special needs of our customers. Low phase noise is also a priority, and these components are available in a variety of package options, including SMT. While offering outstanding vibration, shock and acceleration sensitivity performance, our ruggedized components also provide competitive stability and phase noise characteristics. In fact, the stability performance of several of our TCXOs matches that of an OCXO, but without the excessive power draw and warm-up time. In addition, we offer self-calibrating oscillators with excellent reliability and long-term stability.