[time-nuts] 4.19 MHz xtal

[Ian Stirling]

On 3/31/19 5:29 PM, Neville Michie wrote:

> I have a Philips quartz clock that runs on 4.19 MHz.
> In spite of the high frequency it still runs for years
> on a C cell.
> Can any of the quartz crystal gurus explain why this
> frequency was chosen? I believe that this clock was
> supposed to have better than usual accuracy.
> Philips always had a high level of engineering excellence.

Neville,

   4.19 MHz search on startpage.com returns these two articles of the IEEE.
https://ieeexplore.ieee.org/document/7562933
https://ieeexplore.ieee.org/document/8306514

Ian
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