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 filter shown in the figure can be implemented with general purpose amplifiers like the 741....
This circuit is from a year 2000 documentation. It generates pulses as fast as a battery or as...
a This circuit was obtained from a 1978 Practical Wireless. It causes a low-power 1.5V lamp to...