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1: Non-Inverting OpAmp Circuit
2: Differential input OpAmp Circuit
3: 2nd Degree OpAmp LP Filter (Butterworth/Bessel)
4: 2nd Degree OpAmp LP Filter (Adjustable Q)
5: 2nd Degree OpAmp HP Filter (Butterworth/Bessel)
6: 2nd Degree OpAmp HP Filter (Adjustable Q)
7: 2nd Degree OpAmp BP Filter
8: OpAmp Bandreject Filter
9: Biquad Filter