Found in the September 1982 issue of Radio Electronics magazine, this circuit triggers a relay intermittently. Triggering is done by a reed switch, but other types of sensors can be used.
This crowbar protection circuit for non-regulators blows the fuse when the load voltage exceeds a...
This general-purpose transistor amplifier stage was found in the November 1993 issue of...
This circuit was found in an old British publication from 1976. It must be powered with 5 V and...