This circuit uses the SQ3524, a switching integrated circuit. The circuit was found in the April 1991 issue of Radio Electronics magazine.
Suggested by an American technical documentation, this circuit is polarized in order to provide an...
January 2017 - Mouser Electronics is shipping the new Littlelfuse TVS SP1043, SP1044 and SP1045...
This doorbell or buzzer as announced in a 1990s US publication uses an operational amplifier that admits...