Instructions to build a crystal radio for the "beginner"
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a guide for those people who are still starting with their electronics hobby.
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Contents1 Circuit Diagram2 Components Required3 Component Description3.1 TDA20303.2 BD708 and BD705 (NPN and PNP)4 Circuit Design of 200W Audio Amplifier5 Working6 Power Supply Requirements7 Related Articles Audio Amplifiers are being used for decades. The main function of an audio amplifier is to reproduce the input audio signal at sound producing systems like speakers with desired …