Hi Well …. 4.19304 = 2^22
I’d bet they used a bunch of divide by 2 ( or 2^N ) parts. :) At some point they went from electronic division to driving gears. Is that what he’s looking for? or is he after the brand / model of divider chip? It’s quite possible that they used a custom part, even back then. Bob > On Sep 11, 2020, at 1:30 PM, Bill S <w...@jbpet.com> wrote: > > A friend has acquired a Chelsea Clock Company Chronoquartz which was probably > made in the 70's. He has measured the oscillator frequency at approximately > 4.194304 MHz. He wanted to know what arrangement of dividers they used to run > the 4 pole stepper motor to step seconds. Anybody know? > > Thanks, > > Bill_S > > _______________________________________________ > 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.
