On Mon, 16 May 2011 00:01:54 +0200 (CEST) "iov...@inwind.it" <iov...@inwind.it> wrote:
> >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. Such crystals are easily available. It's just that the usual suspects (digikey, farnell,..) do not sell them, as they have not enough volume. Easiest to get them is to call your local sales rep of a crystal manufacturer and ask him what options he has. Usually you can get away with buying a dozen or so of a custom frequency, at the cost of a couple USD each. If you can get one of the "tunable" types, you should be able to get single pieces at a reasonable price. Of course, the stability of those crystals is not time-nuts class, but <100ppm should always be possible and with a bit of tuning, you can get rid of that as well. Attila Kinali -- The trouble with you, Shev, is you don't say anything until you've saved up a whole truckload of damned heavy brick arguments and then you dump them all out and never look at the bleeding body mangled beneath the heap -- Tirin, The Dispossessed, U. Le Guin _______________________________________________ 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.