A delay line to record random action potentials.
D000200:Action Potentials; D004566:Electrodes; D005071:Evoked Potentials; D006801:Humans; D008722:Methods; D009132:Muscles / Q000502:physiology; D009424:Nervous System Physiological Phenomena; D011199:Potentiometry / Q000295:instrumentation*; D013997:Time Factors