[time-nuts] Chelsea Chronoquartz dividers

[Bob kb8tq]

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 <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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