[time-nuts] Can a quartz crystal go off by 2% ?
Dr. David Kirkby
david.kirkby at onetel.net
Tue Dec 29 00:24:57 UTC 2009
Bruce Griffiths wrote:
> If the trimmer in in series with the crystal and not shunted by another
> capacitor then the crystal will no longer control the oscillator frequency.
> 0.1pF or 0.01pF in series with a tuning fork crystal instead of the
> nominal value (20pf?) will make a singnificant difference.
>> Thanks for the idea of the ferrite rod.
>>
> Bruce
Thank you. I guess thats a possible failure mechanism, though if there is no
control, I'd doubt it would keep 98 % accurate. I would have expected it to stop.
Dave
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