[time-nuts] Chelsea Chronoquartz dividers

Dana Whitlow k8yumdoober at gmail.com
Fri Sep 11 20:53:08 UTC 2020


It may be that he's looking for info on how to drive the stepper motor(s),
such as
pulse sequences etc.

Dana


On Fri, Sep 11, 2020 at 2:59 PM Graham / KE9H <ke9h.graham at gmail.com> wrote:

> 2^22 = 4,194,304
> So divide by two, 22 times in a row to get to 1 Hz.
> --- Graham
>
>
> On Fri, Sep 11, 2020 at 12:42 PM Bill S <wls at 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
> >
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