[aprssig] Timer Circuit Needed

Kurt O. Jauss kf6hjo at earthlink.net
Fri May 25 16:03:15 EDT 2007


There is this .

http://www.primaryparts.com/6062?partner=233&gclid=CJjDpICAqowCFSbyYAodwh_eNQ

Kurt

John wrote:

> I am in need of a schematic (or complete unit) for a timer that will 
> run off +12v and pulse a relay every 15 mins. The relay should stay on 
> for 10secs. I think it can be done with a dual 555, one for the 15mins 
> and the other for10secs.
> Anyone got any ideas. I need this to turn on the TNC and Transmitter 
> for a solar powered wx station I'm trying to build
>
> Thanks
>
> John
>





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