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Audio Amplifiers
http://hyperphysics.phy-astr.gsu.edu/hbase/Audio/amp.html#:~:text=Amplifiers%20The%20task%20of%20an%20audio%20amplifier%20is,the%20waveform%20and%20hence%20the%20qualityof%20the%20sound.
Audio Amplifiers
http://hyperphysics.phy-astr.gsu.edu/hbase/Audio/amp.html
Amplifiers. The task of an audio amplifier is to take a small signal and make it bigger without making any other changes in it. This is a demanding task, because. a musical sound usually contains several frequencies, all of which must be amplified by the same factor to avoid changing the waveform and hence the quality of the sound. An amplifier ...
Basics of Audio Amplifier - 1/9
https://www.engineersgarage.com/basics-of-audio-amplifier-1-9/
Any audio signal is also basically a sine wave so a function generator can be used instead of using a microphone or actual audio source. So, the function generator can be used as input source for testing the audio amplifier circuits.
What is the function of audio amplifier? - Answers
https://www.answers.com/Q/What_is_the_function_of_audio_amplifier
An audio amplifier boosts sound levels. Audio amplifiers typically contain transistors, though the transistors are often packaged inside ICs (Integrated Circuits). A transistor is an electrical ...
How does an amplifier work? - Explain that Stuff
https://www.explainthatstuff.com/amplifiers.html
Amplifiers - Learn About Electronics
https://www.learnabout-electronics.org/Amplifiers/amplifiers10.php
Audio voltage amplifiers are used to amplify the low level signals from microphones, tape and disk pickups etc. With extra circuitry they also perform functions such as tone correction equalisation of signal levels and mixing from different inputs, they generally have high voltage gain and medium to high output resistance.
Amplifiers - Learn About Electronics
https://www.learnabout-electronics.org/Downloads/amplifiers-module-01.pdf
A.F. Amplifiers Audio frequency amplifiers are used to amplify signals in the range of human hearing, approximately 20Hz to 20kHz, although some Hi-Fi audio amplifiers extend this range up to around 100kHz, whilst other audio amplifiers may …
Power Amplifiers - Tutorialspoint
https://www.tutorialspoint.com/amplifiers/power_amplifiers.htm
The function of a power amplifier is to raise the power level of input signal. It is required to deliver a large amount of power and has to handle large current. The characteristics of a power amplifier are as follows −. The base of transistor is made thicken to handle large currents. The value of β being (β > 100) high.
Troubleshoot an Audio Amplifier with an Oscilloscope ...
https://www.circuitspecialists.com/blog/troubleshoot-an-audio-amplifier-with-an-oscilloscope/
Clip the ground cable of the oscilloscope to the amplifier’s chassis ground, which is usually a bolt mounted on the side or the back of the inside of the chassis, and turn on the sine wave or function generator. Set all controls on the oscilloscope to zero and set the oscilloscope to direct current coupling. Turn on the audio amplifier.
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