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Author Topic: Tracking down noise...  (Read 5792 times)

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Offline SimonD

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Re: Tracking down noise...
« Reply #10 on: November 26, 2007, 01:40:46 PM »
Thanks I'll have a go at those suggestions tomight and report back...
The reason I put the zener in was as an extra safety measure as described on this page...

http://www.epanorama.net/circuits/parallel_output.html#relaycontrol