File:McIntosh_MC2505.jpg · Wikimedia Commons · See Wikimedia Commons
electronic amplifier
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thumb|A McIntosh Laboratory|McIntosh stereo audio amplifier with output power of 50 watts per channel used in home component audio systems in the 1970s.
An electronic amplifier is a device that increases the strength of electrical signals, exemplified by stereo audio amplifiers such as those from McIntosh Laboratory. These components are essential in audio systems and other applications requiring signal enhancement.
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Research
4,944 papers- Instrumentation for electrodiagnostic studies.Handbook of clinical neurology · 2019
- Esophageal stethoscope amplifier.Anesthesia and analgesia · 1985
- Differential automatic zero-adjusting amplifier.The Review of scientific instruments · 1979
- Composite instrumentation amplifier for biopotentials.Annals of biomedical engineering · 1990
- Image amplifier.Radiography · 1951
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Article
31 sectionsContents
- History
- Vacuum tubes
- Transistors
- Theory of Operation
- Properties
- Negative feedback
- Categories
- Active devices
- Power amplifiers
- Operational amplifiers (op-amps)
- Distributed amplifiers
- Switched mode amplifiers
- Negative resistance amplifier
- Applications
- Video amplifiers
- Microwave amplifiers
- Musical instrument amplifiers
- Voice amplifiers
- Classification of amplifier stages and systems
- Common terminal
- Unilateral or bilateral
- Inverting or non-inverting
- Function
- Interstage coupling method
- Frequency range
- Example amplifier circuit
- Notes on implementation
- Special types
- See also
- References
- External links
thumb|A McIntosh Laboratory|McIntosh stereo audio amplifier with output power of 50 watts per channel used in home component audio systems in the 1970s.
thumb|Amplification means increasing the amplitude (voltage or current) of a time-varying signal by a given factor, as shown here. The graph shows the input v_i(t) (blue) and output voltage v_o(t) (red) of an ideal linear amplifier with an arbitrary signal applied as input. In this example the amplifier has a voltage gain of 3; that is at any instant v_o(t) = 3v_i(t)\,