A Sansui TU-X1 stereo FM tuner.

A tuner is an adjustable device which passes one radio frequency, or band of frequencies, and excludes others, by using electrical resonance. The simplest tuner consists of an inductor and capacitor. Combined with a detector, also known as a demodulator, it becomes the simplest radio receiver, often called a crystal set. Picture taken by Fernando Martins (eBay masterviewer), put into the public domain for use by the Tuner Information Center This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Picture taken by Fernando Martins (eBay masterviewer), put into the public domain for use by the Tuner Information Center This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... The abbreviations FM, Fm, and fm may refer to: Electrical engineering Frequency modulation (FM) and its most common applications: FM broadcasting, used primarily to broadcast music and speech at VHF frequencies FM synthesis, a sound-generation technique popularized by early digital synthesizers Science Femtometre (fm), an SI measure of length... Sine waves of various frequencies; the lower waves have higher frequencies than those above. ... A band is a small section of the spectrum of radio communication frequencies, in which channels are usually used or set aside for the same purpose. ... In physics, resonance is the tendency of a system to absorb more energy when the frequency of the oscillations matches the systems natural frequency of vibration (its resonant frequency) than it does at other frequencies. ... An inductor is a passive electrical device employed in electrical circuits for its property of inductance. ... A capacitor is a device that stores energy in the electric field created between a pair of conductors on which equal but opposite electric charges have been placed. ... In general, something that reacts to stimuli in a set manner, and is either part of a living being, or made by a living being, for the purpose of doing such reacting. ... A demodulator is an electronic circuit used to recover the information content from the carrier wave of a signal. ... In radio terminology, a receiver is an electronic device that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. ... The crystal radio receiver (also known as a crystal set) was first built circa 1900 by Greenleaf Whittier Pickard, who used crystalline minerals to detect radio signals. ...

Tuners can be either stereo or mono, and are available for TV, FM, and AM signals. Stereophonic sound, commonly called stereo, is the reproduction of sound, using two independent audio channels, through a pair of widely separated speaker systems, in such a way as to create a pleasant and natural impression of sound heard from various directions as in natural hearing. ... Monaural (often shortened to mono) sound reproduction is single-channel. ... -1... Roberts FM radio FM radio is a broadcast technology invented by Edwin Howard Armstrong that uses frequency modulation to provide high-fidelity sound over broadcast radio. ... AM radio is radio broadcasting using Amplitude Modulation. ...

Typically, AM and FM tuners are sold with built-in amplifiers and/or loudspeakers, and this device is referred to as a receiver. However, standalone stereo FM tuners are sought after for audiophile and TV/FM DX applications, especially those produced in the 1970s, when standards of quality were higher before plastic replaced metal. A few 1970s tuners feature now-deprecated Dolby noise reduction for FM broadcasts. An amplifier can be considered to be any device that uses a small amount of energy to control a larger amount, although the term today usually refers to an electronic amplifier. ... Closeup of a loudspeaker driver A loudspeaker, or simply speaker, is an electromechanical transducer which converts an electrical signal into sound. ... Categories: Technology stubs | Consumer electronics ... An audiophile — literally, one who loves to hear — is a person dedicated to high-fidelity sound reproduction and achieving high-quality results in the recording and playback of music. ... TV DX and FM DX are two terms, customarily grouped together, that mean distant reception of TV and FM radio stations, respectively. ... Plastic is a term that covers a range of synthetic or semisynthetic polymerization products. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily forms ions (cations) and has metallic bonds, and metals are sometimes described as a lattice of positive ions (cations) in a cloud of electrons. ... The 1970s decade refers to the years from 1970 to 1979, inclusive. ... Dolby NR is a noise reduction system developed by Dolby Laboratories for use in analogue magnetic tape recording. ...

TV tuners are rarely found as a separate component. They are usually bundled with a monitor, VCR, and/or PVR. However, they do exist for use by members of the television industry, and may be purchased on eBay. The word monitor is a Latin term for warner or suggester, and now has several different meanings depending on context. ... The video cassette recorder (or VCR, less popularly video tape recorder) is a type of video tape recorder that uses removable cassettes containing magnetic tape to record audio and video from a television broadcast so it can be played back later. ... A digital video recorder (DVR) is a device that records video to a digital storage medium. ... eBay Inc. ...

TV tuners are also installed on PCI computer expansion cards (or in USB device, or even as a part of video card), together with a DSP, allowing a personal computer to diaplay and/or capture television channels. A number of earlier models were stand-alone tuners, designed to deliver TV picture through a VGA connector. This allowed viewing television on a computer display, but, of course, did not allow recording programmes by the PC. See TV tuner card for more information about computer-designed TV tuners. For other meanings of PCI, see PCI (disambiguation). ... A computer is a machine capable of undergoing complex calculations. ... Collectible card games (CCGs), also called customizable card games or trading card games, are played using specially designed sets of cards. ... Note: USB may also mean upper sideband in radio. ... A GeForce 4 4200-based graphics card A graphics card or video card is a component of a computer which is designed to convert a logical representation of an image stored in memory to a signal that can be used as input for a display medium, most often a monitor... The term DSP, when used by itself, can refer to: The sterilisation process Dry Sterilisation Process for the cold and fast sterilisation of surfaces. ... VGA Connector A VGA connector is a three-row DB-9/15 (also called mini sub D15) connector for use with a VGA, SVGA, or XGA monitor. ... tv-card A TV tuner card is a computer component that allows television signals to be received by a computer. ...

Transmitting tuner

Another type of radio tuner allows a transmitter to be efficiently operated with antennas and transmission lines that are not matched in impedance. Such a tuner is useful when operating an antenna system over a wide range of frequencies. In biology, antenna (plural: antennae) refers to the sensing organs of several arthropods. ... In electrical engineering, Impedance is a measure of opposition to a sinusoidal electric current. ...

See also

• VFO
• TV tuner card

VFO is an acronym for Variable Frequency Oscillator. ... tv-card A TV tuner card is a computer component that allows television signals to be received by a computer. ...

External link

• Tuner Information Center, about vintage FM stereo tuners
• DX-Tuners A worldwide network of remotely controlled Tuners