[time-nuts] Chelsea Chronoquartz dividers

[Bill S]

Thanks everyone for the prompt and numerous responses. It was really an 
academic question. He was curious what the division was for 4.194304 MHz 
to get it to 1pps.

Bill

  



On 9/11/2020 5:50 PM, paul swed wrote:
> I went looking for the clock and found nothing. But like the rest
> discovered the divider ratio to 1Hz. But does the conversation stop at that
> point? Since Bill said the motor was 4 pole wouldn't there be 1 more
> divider to .5 Hz with the Q and /Q essentially across the coil. Add
> protection diodes and such.
> It  looks like the Omega timepieces were quite nice.
> regards
> Paul
> WB8TSL
>
> On Fri, Sep 11, 2020 at 3:59 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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