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MrBungle · 14th Feb 2018, 1:25 pm

I've tried overtone crystals in my crystal tester and they quite happily oscillate at the fundamental only. I think they are made purely so that the overtone frequency is pretty accurate as the harmonics aren't exactly 3, 5x etc the fundamental.

14th Feb 2018, 1:25 pm	#13
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Quartz crystal accuracy over time I've tried overtone crystals in my crystal tester and they quite happily oscillate at the fundamental only. I think they are made purely so that the overtone frequency is pretty accurate as the harmonics aren't exactly 3, 5x etc the fundamental.