Problems with the stripboard Lp vcf layout

Odds are you’re overloading the TL07x opamps (they don’t like it when the input goes too low), and need to attenuate. Lots of references to that in this thread:

Consensus seems to be that changing the input resistors to around 20k is about right for most users (the performance filter’s 100k is too high, the stripboard layout’s 10k is too low).

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