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Old 14-05-2017, 04:39 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,078
555 is not stable enough for AP.. however it is adequate for visual, and definitely better than oscillator with Schmitt trigger.

Better still, why don't you go for this?

Last edited by bojan; 14-05-2017 at 06:07 PM.
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