11. Keeping multiple tuned circuits aligned while tuning over a wide frequency range is difficult. 12. Thus the alternator output frequency is " locked " to the tuned circuit resonant frequency. 13. The tuned circuit is usually a dual-circuit broadband type. 14. RLC circuit appears to have all the attributes of a good page on tuned circuits . 15. Maybe a redirect from tuned circuit to RLC circuit. 16. Butterfly capacitors are used in symmetrical tuned circuits , e . g . magnetic loop antennas. 17. The tuned circuit is excited by radio-frequency alternating current magneto-inductively coupled from the receiver's antenna. 18. The spread of component values is thus less in stagger-tuned circuits than in aggregated circuits. 19. By the use of tuned circuits or a sinusoidal. 20. At the higher frequencies it is not possible to use lumped components for the tuned circuit .