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Interval trigger device

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johncm

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Hi to all,

i need small electronic interval trigger. This trigger should trigger 20 to 30 times in a second.
I need this to trigger some relay. Such device should be very small and it should work on 9V.

How can I do that? Or, it would be better if there is some kit?

please help
 

You could use a 555 timer. There are probably little boards on the market that can do this, just search the net.
 

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