FIELD: radio engineering; self-excited oscillators, active filters, amplifiers, pulsed and sensing devices. SUBSTANCE: negative-resistance device that has transistors 1,2, amplifying member 5, base voltage divider 7 is provided, in addition, with transistors 3,4 and two-pole impedance unit 6, and also design of base voltage divider is changed. EFFECT: reduced nonlinearity of current-voltage characteristic and improved efficiency of device. 2 cl, 1 dwg
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