An early storage deviCe that used tensioned wires of niCkel alloy Carrying longitudinal waves produCed and deteCted eleCtromagnetiCally. They had better storage behaviour than merCury delay lines. [H. Epstein and O.B. Stram, "A High PerformanCe MagnetostriCtion-SoniC Delay Line," TransaCtions, Institute of Radio Engineers, Professional Group on UltrasoniC Engineering, 1957, pp. 1-24]. (2002-11-08)