[time-nuts] Car Clock drift - the lowly 32kHz tuning fork crystal specs

Brooke Clarke brooke at pacific.net
Sun Apr 9 16:10:16 EDT 2017

Hi Ron:

I think HP pioneered that method in one of their hand held calculators (PH35 or PH41)?

Have Fun,

Brooke Clarke

-------- Original Message --------
>> In your case, the car sits in an environment that matches their test
>> setup well. In my case �\200� not so much.
> FWIW, mine drifts pretty badly. It's in an aftermarket stereo, and I
> don't remember when I bought it (I moved it from my previous car).
> I assume that all quartz clocks and watches these days use "inhibition
> conpensation".
> https://en.wikipedia.org/wiki/Quartz_clock#Inhibition_compensation
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