2 to the 22nd power is 4.194304MHz. 32768 Hz crystals are a tuning fork cut with a very different temperature curve than a typical AT cut which your 4.19MHz crystal probably is.
Tim N3QE On Sun, Mar 31, 2019 at 6:03 PM Neville Michie <namic...@gmail.com> wrote: > Hi, > I have a Philips quartz clock that runs on 4.19 MHz. > In spite of the high frequency it still runs for years > on a C cell. > Can any of the quartz crystal gurus explain why this > frequency was chosen? I believe that this clock was > supposed to have better than usual accuracy. > Philips always had a high level of engineering excellence. > > cheers, > Neville Michie > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.