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DIY audio amplifiers circuit diagram electronics projects

DIY audio amplifiers circuit diagram electronics projects and other related audio projects like : power amplifiers, audio systems, audio filters, vu meters, tone control, audio equalizers and more .

TDA7386 audio power amplifier circuit

TDA7386 audio power amplifier circuit is a high power audio amplifier based on the TDA7386 which is an class AB audio power amplifier circuit, packaged in Flexiwatt 25 and designed for high end car radio applications.
The TDA7386 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The TDA7386 require only few external components .
Maximum power which can be obtained with this audio amplifier IC is around 28 watts for one channel at 14.4 volts on 4 ohms load impedance .

LM391 40 watt audio amplifier circuit

This 40 watt audio amplifier circuit is designed using LM391 audio power driver circuit and few external electronic components.

STK4050V 200 watt amp electronic circuit

This 200 watt audio amplifier circuit diagram is based  on STK4050V high power audio amplifier IC and is designed do deliver up to 200 watts audio power on a single channel .
STK4050V 200 watt audio amplifier circuit is pin compatibility with other STK amplifiers series .
Because of current mirror circuit application the distortions are reduced to 0.08 % .

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