Abstract: There is disclosed a spacer-damper for electrical transmission cables or the like. A rigid spacer composed of mating half-sections has defined at its extremities hollow spherical sockets for receiving the spherical end portions of individual cable connector structures. The opposite ends of the connectors are fashioned for effecting a gripping connection with a cable. A resilient damping material is interposed between the spherical connector end portions and their associated receiving sockets and the damping material is secured to both the ball and the socket so that on pivoting of the connector arm attendant cable vibration or oscillation the damping material is placed in shear to effect a damping action.