tuner


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tuner

[′tü·nər]
(electronics)
The portion of a receiver that contains circuits which can be tuned to accept the carrier frequency of the alternating current supplied to the primary, thereby causing the secondary voltage to build up to higher values than would otherwise be obtained.

tuner

An electronic circuit that locks on to a selected carrier frequency (station, channel). Found in every AM/FM radio, TV, cellphone and wireless receiver, the tuner filters out all but the desired frequency and passes it on to other stages in the device to extract the audio, video or data. See TV tuner.


Try Tuning This Radio!
In 1925, users had to tune three stages on this battery-operated Stewart Warner Radio to obtain a radio station. When they got a good signal, they wrote down the numbers on a log sheet (top) so they could tune in quickly the next time. (Equipment courtesy of Vintage Radio and Communications Museum of Connecticut, www.vrcmct.org)
References in periodicals archive ?
NuTune is currently promoting the FK1600 Tuner family, available to the Global TV market.
As FCC chairman Michael Powell has said, economies of scale and the falling prices of televisions will more than make up for any differential in the price of an external DTV box and an internal tuner card.
Supporting the DOCSIS standard, the SiW100 cable tuner IC includes all the front-end receiver and channel selection functions of a high-performance, dual-conversion CATV tuner in a single, 48-pin leadless package.