This crystal-based circuit can generate accurate 50 or 60 Hz signals. The circuit is from a November 1998 Electronics Now magazine. The output signal consists of rectangular pulses.
This high-power shield is isolated from the control. The circuit was found in the June 1995...
This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The...
We found this simple car fuse monitor circuit in a William Sheets. The LED lights up when the fuse...