Abstract: A vibration exciter including a motor with eccentric counterweights is carried by a mounting frame so as to transmit vibrations to a vibrating feeder through a coil drive spring system. Eight coil drive springs are disposed in coaxial sets two sets to each side of said motor; the springs of each of such sets being disposed on opposite sides of a ledge formed as part of the mounting frame. A bolt extends through each aligned coil drive spring set to connect the vibration exciter, mounting frame and spring system to a vibrating feeder to form therewith a two mass vibrating feeder. Relatively stiff leaf spring type stabilizer springs also connect the mounting frame to the vibrating feeder but so as to minimize transmission of vibrating forces to the live frame, of the vibrating feeder, in directions transverse to the action direction of the spring system.