[Lowfer] TAG and Bill

Eric Smith [email protected]
Sun, 9 Feb 2003 15:54:07 -0600 (CST)


Hmm.  How simple!  Thank you.

It disappoints me, though, that I can easily do that, once told, but could 
not have thought of it on my own.

That's how amateur an amateur I am.  :(

Thank you!

Eric


On Sun, 9 Feb 2003, John Andrews wrote:

> Eric:
> 
> > Rumor has it you guys might be able to point me to a circuit that would
> > toggle an output on the hour and half-hour.  I'd like to use the toggle to
> > switch one of my beacons (not LF) between two modes.
> 
> I'd take a crystal oscillator and divide it down until I had a square wave
> with a period of 60 minutes. That would be 30 mins on and 30 mins off. I did
> that ages ago back in the TTL days to trigger a time tone for a radio
> station. The last division step needs to be a divide-by-two to get the
> square wave.
> 
> John Andrews
> 
> 
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