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.
This circuit uses an unusual electromechanical component: a mechanical blade resonator. The...
This circuit from a Japanese publication in 1968 uses germanium transistors from the time like the...
Found in a 90s Electronic Design, this circuit can provide a relatively high-power output. The basic...