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)