[time-nuts] RE; New Wrist watch

[Bob Camp]

Hi

Yes indeed you can "hear" the 32KHz crystal. Back in the dark ages, that's
exactly how we picked off the signal to drive a counter during adjustment of
the watch modules.

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Azelio Boriani
Sent: Wednesday, September 12, 2012 5:22 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] RE; New Wrist watch

Interesting: trying to "hear" a low frequency crystal using a microphone...
it should be hard: the crystal has to make the case vibrate and this is
energy consuming (unless it resonates). I don't expect to pick up nothing,
except the step motor driving the hands.

On Wed, Sep 12, 2012 at 9:45 AM, Hal Murray <hmurray at megapathdsl.net> wrote:

>
> > I have a $49 Casio Wave Ceptor, white face black numerals, analog hands
> > including second hand, date, alarm and WWVB syncing in the middle of the
> > night. Only had to replace the battery once and it ticks are closer than
> I
> > can discern when comparing to WWV @ 10or 15 Mhz.
>
> Has anybody "listened" to such a watch?  (with a microphone)
>
> Can you hear both the 32KHz basic timekeeping as well as the "tick" when
> the
> second hand takes a step?
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
>
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