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.This article about an American inventor is a stub.You can help Wikipedia by expanding it.
Alexander Malcolm Nicholsoncrystal oscillatorRochelle saltBell Telephone LaboratoriespriorityWalter Guyton Cady