Indicated for automotive use, this circuit was found in a Popular Electronics from the 90s. The circuit uses a power transistor that must be equipped with a heatsink.
This simple radio receiver can pick up AM stations in the MW range from 520 to 1600 kHz using a...
The purpose of this circuit is to keep an engine speed constant. The circuit was found in a 1989...
Found in an old Popular Electronics this circuit appears in other variations on this site and in...