[time-nuts] Digital Clock kit - no Integrated circuits!

[Poul-Henning Kamp]

In message <15F711F4-5F3D-4CB3-8745-34806A416CC9 at cq.nu>, Bob Camp writes:
>Hi
>
>Maybe a system using a rotary electrical machine synchronous to the power line driving a system of gears. and pointers on a dial 

That is what was known as a "synchronous clock".  Tom has one running
off his atoms on his web-page...

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