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/diy/ - Do It Yourself

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>> No.1221574 [View]
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1221574

>>1221522
>cut the ground lead
I think I'll desolder the pots first.

>>1221559
Don't opamp/comparator inputs act like massive resistors to ground? In this case I'm not sure what ground means, when you've got R4 and 5 to define a virtual ground at the positive input V+. But assuming V+ = V-, the right side of the cap will be biased at 2.5V, while the sine wave oscillates between 5V and 1V. This means the capacitor might end up getting biased both ways so you should go for a bipolar cap. But in any case, the average voltage at the left side of C1 is 3V, so it probably is in the correct orientation.

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