Alexander M. Nicholson

Alexander M. Nicholson was an American scientist, most notable for inventing the first crystal oscillator, using a piece of Rochelle salt in 1917 while working at Bell Telephone Laboratories. He then filed a patent the next year.[1] His priority was later disputed by Walter Guyton Cady who invented the first quartz crystal oscillator in 1921.[2]

https://www.nytimes.com/1950/02/04/archives/a-ml-nicolson-video-pioneer-69-recipient-of-television-patent-in.html. At this site there is the New York Times obituary of Alexander McLean Nicolson, the electrical engineer and inventor. His name is sometimes misspelled but had no “h” in the Nicolson. He was my uncle. I have more information about him and his work. James Spencer

References

  1. ↑ Nicholson, Alexander M. Generating and transmitting electric currents U.S. Patent 2,212,845, filed April 10, 1918, granted August 27, 1940
  2. ↑ Hackman, Christine; Sullivan, Donald B. (26 August 1994). "Resource Letter: TFM-1: Time and frequency measurement" (PDF). Time and Frequency Division. National Institute of Standards and Technology, Boulder, Colorado 80303: 1–2. Retrieved 5 January 2016.


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