e, history> An early storage device that used tensioned wires of nickel alloy carrying longitudinal waves produced and detected electromagnetically. They had better storage behaviour than ef="module.php?name=Lexikon&file=search&eid=1&query=mercury delay lines">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)