The present invention relates to a device for producing a hardenable mass, preferably bone substitute andor bone reinforcing material or bone cement or similar material. The wishbone-shaped linkage includes a base and two limbs extending away from the base creating a large mouth open area between the limbs and base. The conductive pad can permit electrical interconnection of the first component with a second component having a terminal joined to the pad through the electrically conductive bonding material. Local conversations can occur on each FCAL loop and crossing conversations through the switch can occur concurrently.