I finally came to wire up the single wall wart so that all 3 pedals will have a cap and resistor to create it's own isolated supply node just like a tube amp. So resistor in series with + to the plug and a cap from +at plug to negative. This has eliminated all noise issues. But having no idea what values to use i first tried a resistor that was too high then lowered them to 1.5k and the caps i used were 100uf because that's what i had handy. I have only done this to 2 pedals because the third i returned for another. But i will do the same when that arrives.
So the questions are first and foremost is what values would you recommend for the cap and R. Also, do you foresee any issues not just running like this with a PSU, but also with a battery? Because when i play out i plug a battery into the power jack that supplies all pedals. (using a little 9v clip to power plug adapter) It worked fine in the past but i'm wondering if this would cause any extra drain or any other issue.
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