I built this mixer and got stuck:
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sound get’s trough but is barely noticeable
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the switches and potentiometers work
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doubleckecked my (sloppy) soldering and swapped some parts (R1, R2, C5, C6, TL072cp)
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this might be related to mixer cutting freq
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i take to power from my fartbox
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when i unplug power i hear something at normal volume while the capacitors inside are draining
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the BOM sais “any” capacitor or resistor at multiple places maybe i went wrong there?