title: [A miniature three-channel amplifier for recording the electrical activity of the brains of freely moving animals].
mesh_terms: D000669:Amplifiers, Electronic; D000818:Animals; D001921:Brain / Q000502:physiology*; D002415:Cats; D004594:Electrophysiology / Q000295:instrumentation; D009482:Neurophysiology / Q000295:instrumentation*
vernacular_title: Miniatiurnyĭ trekhkanal'nyĭ usilitel' dlia registratsii élektricheskoĭ aktivnosti mozga u svobodno dvizhushchikhsia zhivotnykh