self powered radio

In radio terminology, a receiver is an electronic circuit that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. Radio and radio receiver are often used specifically for receivers whose output consists only of sound, although other types of receivers, such as television receivers, are technically radio receivers as well.

As an appliance, "receiver" refers to a tuner, a preamplifier, and a power amplifier in chassis. Eton FR300 Self-Powered Radio/Cell Phone Charger, Flashlight. Audiophiles will refer to such a device as an integrated receiver, while a single chassis that implements only the receiver function is called a discrete receiver.

A radio receiver is a real world example of a receiver in the information theoretic sense.

Most older receivers also came with a loudspeaker (see photo). Today AV receivers are a common component in a high-fidelity or home-theatre system. The receiver is generally the nerve centre of a sophisticated home-theatre system providing selectable inputs for a number of different audio components like turntables, compact-disc players, and tape decks and video components like video-cassette recorders, DVD players, video-game systems, and televisions. Self-Powered, Wind Up, Short Wave, Emergency Radio.