Hi Max,
I mean nothing different than what I asked.
Let me ask again so you can understand:
1. What was your low pass filter cutoff point?
2. What was the resonant frequency of the noise you heard?
3. Was the AC noise you say you found below 1Hz? Or was it above 1 Hz?
4. How many db attenuation did your circuit have for frequencies above 2 Hz?
I did not say anything about what you will find or anything to mod. I only asked those questions. Do you know the answers?
Best wishes,
J_P
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