[aprssig] Timer Circuit Needed

[John]

John Scherer wrote:

> I haven't played with the 555 for a long time but basically you want a 
> 556 chip.  The first chip is configured for Astable operation and its 
> output is feed to the second timer which is configured for Monostable 
> mode.
>
> See this site:
>
> http://www.electronics.dit.ie/staff/mtully/555%20folder/555%20timer.htm 
> <http://www.electronics.dit.ie/staff/mtully/555%2520folder/555%2520timer.htm>


Thanks

John
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