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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 .

TBA820M microphone amplifier circuit

This microphone amplifier circuit is an high sensitivity microphone amplifier based on TBA820M integrated circuit.

Lm1875 25W power audio amplifier

This 25 watt audio amplifier is based on LM1875 manufactured by National Semiconductor and can give a maximum power above 30 watts for an 8 ohms impedance (for a 30 volts double supply).
The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.
This 25 watt audio amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

TDA2003 10W audio power amplifier

This 10W audio amplifier circuit is designed using TDA2003 audio amplifier IC which is a simple and low power audio amplifier, that require few electronic components .

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