[time-nuts] Local Solar Time Clock

Don Latham djl at montana.com
Sun Jan 19 23:13:13 UTC 2014


At last, a use for all those devices with 2 second pulse output :-)
Don

Neville Michie
>
> FWIW
> If you take a cheap digital analog clock, remove the battery,
> connect to the two coil connections, you can drive the clock with a
> 0.5 Hz square wave through the series combination of a capacitor and
> resistor.
> Typical values are 100mfd and 200 ohms.
> You need to select these values to get certain stepping without
> pole-ing.
> The clock originally used 1.2 volt pulses, alternate polarity about 20
> mS long.
> You can trade off these values and still get smooth certain operation.
> Cheers,
> Neville Michie
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-- 
"The power of accurate observation is commonly called cynicism by those
who have not got it."
 -George Bernard Shaw


Dr. Don Latham AJ7LL
Six Mile Systems LLC
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
Skype: buffler2
www.lightningforensics.com
www.sixmilesystems.com





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