<P> The simplest tuner consists of an inductor and capacitor connected in parallel , where the capacitor or inductor is made to be variable . This creates a resonant circuit which responds to an alternating current at one frequency . Combined with a detector , also known as a demodulator ( diode D1 in the circuit ) , it becomes the simplest radio receiver , often called a crystal set . </P>
<P> The simplest tuner consists of an inductor and capacitor connected in parallel , where the capacitor or inductor is made to be variable . This creates a resonant circuit which responds to an alternating current at one frequency . Combined with a detector , also known as a demodulator ( diode D1 in the circuit ) , it becomes the simplest radio receiver , often called a crystal set . </P>
what type of circuit is used to tune a radio
what type of circuit is used to tune a radio
a resonant circuit
a resonant circuit