A Printed Circuit Board is a means of interconnecting components both mechanically and electrically. The printed circuit “board” is a rigid or flexible structure on which components are mounted. These components are mounted through holes in the board and are held in place with solder. The electrical cooections to the various components are accomplished by circuit configurations, which are etched on the boards, and through the conductive plating in the holes. This carries the current form one side of the board to the other.