This volume compressor uses unusual components today. The circuit was found in documentation from the 1980s. The circuit is for audio signals. The LS150 is a high-performance operational amplifier.
The circuit below was found in the March 1990 issue of Radio Electronics magazine. The circuit...
In the figure we have the configuration of series regulator protector suggested by Motorola in 1968...
This circuit was obtained from Raytheon documentation from the 1960s. The transistor is one of the...