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Amplifiers - Learn About Electronics
https://www.learnabout-electronics.org/Amplifiers/amplifiers10.php#:~:text=Audio%20frequency%20amplifiers%20are%20used%20to%20amplify%20signals,the%20high%20frequency%20limit%20to%2015kHz%20or%20less.
What is the use of an amplifier ? – Audioaural
https://audioaural.com/what-is-the-use-of-an-amplifier/
What is the use of an amplifier? If you have purchased a pair of loudspeakers then you will definitely need an amplifier to power them up. There are many variations of amplifiers. Amplifiers differ by shape, size and configuration. There are high and low power amplifiers, single channel, stereo and multi-channel amplifiers.
Audio Amplifiers - Encyclopedia.com
https://www.encyclopedia.com/politics/encyclopedias-almanacs-transcripts-and-maps/audio-amplifiers
Audio amplifiers can be miniaturized for placement in headsets, mobile phones. In applications where small size is at a premium, as in hearing aides and espionage applications (bugs and "wires"), they may be ultraminiaturized. At the high-power end, audio amplification drives public-address systems, speaker systems, and (potentially) weapons.
How does an amplifier work? - Explain that Stuff
https://www.explainthatstuff.com/amplifiers.html
Amplifiers are the tiny components in hearing aids that make voices sound louder. They're also the gadgets in radios that boost faraway signals and the devices in stereo equipment that drive your loudspeakers and the huge black boxes you plug into electric guitars to make them raise the roof. What are amplifiers? How do they work?
What is an amplifier used for in a car? | AnswersDrive
https://boxuesky.com/what-is-an-amplifier-used-for-in-a-car-4874681
An amplifier is an electronic device that increases the voltage, current, or power of a signal. Amplifiers are used in wireless communications and broadcasting, and in audio equipment of all kinds. They can be categorized as either weak-signal amplifiers or power amplifiers.
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