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Topic: Square Wave Signal noise 20HZ - 200 HZ (Read 2372 times) previous topic - next topic

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!!
Brent Finley

Grumpy_Mike

Quote
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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