Piezo Mini Wonder info is at http://www.ko4bb.com/cgi-bin/manuals.pl Search for "Piezo" Didier KO4BB 2008/9/30 Richard H McCorkle <mccorkle at ptialaska.net>: > Hello, > > I purchased three Piezo 2920136 units and the attached file > documents what the pinouts and EFC requirements are. > Hope you find this useful. > > Richard