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John Scherer wrote:<br>

<blockquote type="cite"

 cite="mid16E9B630-5E5E-480A-9DA1-9B7C3C167F52@schererzoo.com">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.

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  <div>See this site:</div>

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  <div><a

 href="http://www.electronics.dit.ie/staff/mtully/555%2520folder/555%2520timer.htm">http://www.electronics.dit.ie/staff/mtully/555%20folder/555%20timer.htm</a></div>

</blockquote>

<br>

Thanks<br>

<br>

John<br>

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