Based on Radio Shack 276-137, this circuit was found in the December 1995 issue of Electronics Now magazine. The circuit drives an LED but could use a relay instead.
This circuit was found in the July 1988 issue of Radio Electronics magazine. It makes use of an...
This crowbar protection circuit for non-regulators blows the fuse when the load voltage exceeds a...
This circuit may be modulated by a very low frequency signal, for example to obtain the vibrato...