This circuit acts on a relay disconnecting the load when the input voltage exceeds the set limit. The transformer is 12 V secondary according to the relay used.
This circuit was found in the March 1992 issue of Radio Electronics magazine. The 10-LED circuit has...
This circuit was found in a documentation by A. Fanzeres making use of a grounded metal housing...
This is the transmitter for a remote-control system published in the August 1986 issue of Radio...