VARIABLE BANDPASS AUDIO FILTER


Posted on Feb 7, 2014

This circuit is a variable audio bandpass filter that has a low cutoff variable from about 25 Hz to 700 Hz and a high cutoff variable from 2. 5 kHz to over 20 kHz. Rolloff is 12 dB/octave on both high and low ends. R2-a-b and RG-a-b are ganged potentiometers for setting lower and upper cutoff fre-quencies, respectively.


VARIABLE BANDPASS AUDIO FILTER
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