https://www.microchip.com/en-us/about/news-releases/corporate/microchip-increases-manufacturing-capacity-of-its-hydrogen-masers
Microchip Increases Manufacturing Capacity of its Hydrogen Masers | Microchip Technology
Microchip Technology is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions that also offers outstanding technical support.
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https://www.nobelprize.org/page/2/?np-year=1989
Norman F. Ramsey - Nobel Lecture: Experiments with Separated Oscillatory Fields and Hydrogen Masers...
Nobel Lecture, December 8, 1989 Experiments with Separated Oscillatory Fields and Hydrogen Masers Read the Nobel Lecture Pdf 283 kB
norman f ramsey