[time-nuts] RE; New Wrist watch

[Azelio Boriani]

The small microphone is not a problem: I've used a small mic from a
cellphone to make an audio  downconverter used as a bat detector, I can try
with that hardware first.

On Wed, Sep 12, 2012 at 6:55 PM, Randy D. Hunt <randy_hunt960 at yahoo.com>wrote:

> On 9/12/2012 2:21 AM, Azelio Boriani wrote:
>
>> 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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>>  Not only that, but 32,000 Hz is about 12,000 Hz higher than the highest
> frequency that we are supposed to be able to hear. . .
>
> Randy
>
>
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