FIELD: radio engineering; adjustment of resonance-tuned circuits. SUBSTANCE: radio receiver has antenna 1, high-frequency amplifier 2, detector 3, audio-frequency amplifier 4, as well as inductance coil 6 and N range capacitors 71 ... 7N forming tunable parallel LC circuit, adjusting capacitor 8, switch 9, N voltage dividers 101 ... 10N, inverters 111 ... 11N, current-limiting resistor 12, light-emitting diodes 131 ... 13N, diode 14, blocking capacitor 16, and decoupling resistor 17. Apart from adjusting resonance-tuned circuits, provision is made in receiver for displaying selected ranges; light-emitting diodes 131 ... 13N displaying operating range are changed over by means of contacts of switch 9 handling high-frequency signals of resonance-tuned circuits. EFFECT: enlarged functional capabilities. 2 cl, 1 dwg
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