This circuit was found in an American 1980s documentation. Dual FETs can be replaced by single equivalents. Control voltage ranges from 0 to 1 V.
This circuit was found in a Popular Electronics of the 90s. It operates a third brake light that...
This is the basic version of a gain 20 amplifier with the LM386 providing a few hundred...
This circuit was found in the September 1989 issue of Radio Electronics magazine. The circuit uses...