This reaper has the signal limit determined by the zener voltage. We found this circuit in a 1980 publication. The power supply must be symmetrical and other operational ones can be tried. The diodes can also be 1N4148.

This reaper has the signal limit determined by the zener voltage. We found this circuit in a 1980 publication. The power supply must be symmetrical and other operational ones can be tried. The diodes can also be 1N4148.