Re: 555 used as a delayed pulse generator?

In article <69GOe.31777$ll3.404429@xxxxxxxxxxxxxxxxxxxxxxxx>, Tristar wrote:

> I'm looking to set us a simple way to turn something on after 10 seconds. The
> resulting output after the end of the 10 seconds needs to be a momentary pulse
> and not stay in a closed position.
>
> -----------------------------------------------------------------------^-
>
> Like this.
>

set up the 555 as a monostable and use a capicitor in series with the output
to pulse the transistor's base when the output changes state after the 10
seconds have elapsed. (there'll bve a pulse to the transistor when it starts
too but it'll be the wrong polarity and the transistor will ignore it)

--

Bye.
Jasen
.

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