Precise audio clipper

  
A differential amplifier makes an excellent audio clipper and can provide precise, symmetrical clipping. The circuit shown commences clipping at an input of 100 mV. The output commences clipping at ±3 V. Matching Q7 and Q2 is necessary for good symmetrical clipping.
Precise audio clipper  - schematic

(If some asymmetry can be tolerated, this need not be done.)




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