[sdiy] Good 24db/oct HP-LP-BP-Notch filter Schematics ??

Andrew Simper andy at cytomic.com
Thu Mar 6 07:48:08 CET 2014

I would pretty much ignore the manual as it seems like it is written
by someone non-technical. "In its fully anticlockwise position, Q is
approximately zero, and there is no emphasis of the signal at Fc". A Q
of zero is self oscillation, so it has a lot of emphasis at the cutoff


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