This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used as a basis for modern designs with equivalent transistors.
This circuit is from the time when cars used contact breakers. This 80's version measures the dwell...
This circuit eliminates mains noise from turntables or other audio sources. The circuit is from an...
This circuit is a two-channel stereo CMOS mixer with two inputs for each channel. The circuit...