Do you know how sharply you would like the frequencies above 50Hz to be attenuated? That bit of info is need to determine how many poles the filter will require.How do I design a low pass butterworth filter that cuts off around 50-300 hz, and has a pot for frequency adjustment? What kind of diagram do I need and how do I calculate the parts I will need?
Not totally sure, but I just need something that would be an improvement over my current passive rc filter.Do you know how sharply you would like the frequencies above 50Hz to be attenuated? That bit of info is need to determine how many poles the filter will require.
What country are you in?As I said, I am just looking for something that works. The quality is not that big of a deal, I just don't want to pay an arm and a leg for it, or have to wait weeks for shipping. Is there anything at all electronics or radioshack that will at least work, regardless of quality?
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