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MrBungle · 15th Jan 2018, 11:05 am

I'm quite impressed with at least one HC6/U crystal I have. It is a 1MHz one dated 1969. Has the load capacitance on the can. Plopped it in an oscillator circuit with the right capacitance and hey presto 1.00001 MHz on my counter (!)

15th Jan 2018, 11:05 am	#9
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Quartz crystal accuracy over time I'm quite impressed with at least one HC6/U crystal I have. It is a 1MHz one dated 1969. Has the load capacitance on the can. Plopped it in an oscillator circuit with the right capacitance and hey presto 1.00001 MHz on my counter (!)