Tone Control Circuit Using NE531 Op-Amp

Tone control of audio system involves altering the flat response in order to attain more low frequencies or more high ones, dependent upon listener preference. the circuit provides 20dB of bass or treble boost or cut as set by the variable resistance. Op-Amp NE531 or 301,Turn Over Frequency 1Khz,Base Boost +20dB , base cut -20dB , Treble boost +19dB at 20Hz, treble cut -19dB at 20Hz



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