TRANSIT VEHICLE DOOR SIGNAL CHIMES

A signal apparatus for use with the moving doors of transit vehicles or the like and which preferably takes the form of an electronic door chime means simulating the tonal quality of electromechanical chimes by using an arrangement of solid state components and thereby eliminating the use of moving parts. The door chime means includes first and second switching means, first and second decaying network responding to the switching means and driving first and second tone generators, and a time delay means between the first and second switching means to sequentially trigger the tone generators.