[email protected] wrote: >On 5/15/11 2:22 PM, [email protected] wrote: >> Hi all, >> does anybody out there have any ideas as where to find a 32859Hz crystal (1/2 >> that value would be better) to be used to replace 32768 crystals in ordinary >> clocks? I think that 32768 crystals cannot be dragged that much. I've already >> read the JimLux article somewhere on the web, but I would be pleased finding a >> simpler solution. Also, I already have computer programs that show sidereal >> time. >> Thanks, >> Antonio I8IOV >> > >Heh.. I cheated and used a 3325B to make whatever frequency we wanted. >(even better, you can use GPIB to change the frequency vs time to make a >"clock" that displays unusual things like "height above horizon" or >"azimuth to orbiter") Whether this would be more useful than just >driving a dial with a stepper motor is sort of a good question.
If a 32859 crystal was easily available, that would be a fantastic solution. >I think you're right that you can't drag a 32768 crystal down by one >part in 365. Maybe you could do it by opening the can and putting some >mass on the crystal resonator? Some mass should be removed, not added. I was considering this possibility. They exist some so called "tuning fork" crystals that might allow for this. And they are very cheap. One could buy a batch of them for a few $ and have a try. What do you think? Antonio I8IOV _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
