This is a precision half-wave rectifier, suggested by Texas Instruments. Diodes are commonly used, and resistors can have signal values. The power supply must be symmetrical.
This circuit was obtained in a magazine Hands On-Electronics from June 1987. It is a circuit that...
This is the receiver for the previous circuit. The audio amplifier supports equivalents. The...
This distortion circuit was found in an American publication from 1970. It can be assembled with...