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In electronics and radio, a tuner is a type of receiver subsystem that receives RF transmissions, such as AM or FM broadcasts, and converts the selected carrier frequency into a form suitable for further processing or output, such as to an amplifier or loudspeaker.
The simple tuning circuit is from the Figure 5 Test Circuit. Figure 8 has a more elaborate tuner. Datasheet Figure 8 shows a stereo FM radio with an audio amplifier for driving a speaker.
26 maj 2016 · Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education <a {{0}}>research</a> and engage students through an intuitive, game-like environment where students learn through exploration and discovery.
Modern Tuned Circuits Circuits used in modern radio gear are tuned electronically rather than mechanical- Iy. A semiconductor, such as a diode or transistor, serves as the tuning capacitor. Most modern TV receivers are tuned in this manner (varactor tuning). An example of a typical electronically tuned circuit is given in Fig. 6. DI is a special
A tuned circuit has a very high impedance at its resonant frequency (ideally = infinity). At other frequencies, its impedance is lower. Tuned circuits are used to select or tune in radio stations on a particular frequency and reject all the others.
Tuned resonant circuits, also called tank circuits or LC circuits, are used in the radio front end to select from the myriad of stations available at the antenna. The tuned resonant circuit is made up of two principal components: inductors and capacitors, also known in old radio books as condensers.
