High-Pass 20HZ to 200HZ Filter

  
A simple circuit, High-Pass filter, variable between frequencies 20HZ until 200HZ, useful in a lot of cases elaboration of sound signals. The regulation is achieved with the double potesometer 47K? and the frequency response in his two extreme places, appears in the schematic.
High-Pass  20HZ to 200HZ Filter - schematic




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