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Author Topic: Square Wave Signal noise 20HZ - 200 HZ  (Read 1854 times)
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Arizona
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Yup... switching diodes didn't help... 10k resistor across the TTL level output does do better ... I'll play with the resistor value to get rid of the little spike I saw...

Thanks all!!
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Brent Finley

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I am isolating my A and B channels with diodes. 
That is not the way to isolate things. It won't work (as you have found out)
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