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 control is intended for 110 VAC or 220 VAC Motors. Any TIC series triac can be used according the power...
This 1965 General Electric circuit uses a "Thyrector" that is a suppressor of the time. The...
The S-meter is a signal strength meter used in communication receivers. This circuit was found in...