On Nov 30, 2007 1:04 PM, Hal Murray <[EMAIL PROTECTED]> wrote: > > > With a little work you might be able to precisely calculate the > > maxima of the parabola and precisely set the frequency independent of > > temp and aging. Ha! > > What's the aging like for watch crystals?
>From a 32.768 kHz crystal taken at random (Fox Electronics) <http://www.foxonline.com/pdfs/ncseries.pdf> Aging: +-3ppm/year > What type of cut to watch crystals use? Are there any generalizations about > aging? I believe the type of cut is just called "tuning fork", but I am not sure. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
