This circuit was obtained from a Radio Electronics from the 90's. The circuit limits the strength of an audio signal preventing saturation. Equivalent operational amplifiers can be tried.
May 2016 - It can be obtained from Mouser Electronics new microcontrollers from Texas MSP430...
This circuit is from a 1986 Revista Española de Electrónica. It consists of an amplifier with...
This differential amplifier with high input impedance is used in instrumentation. Other...