Audio amplifiers are the circuits that transform low-power input audio signals into high-power audio signals at the output. The purpose of the circuits is to provide a noise-free, efficient, and low distorted audio signal with greater magnitude at the output. Different devices use different kinds of audio amplifiers. The amplifier devices usually have two stages, a pre-amplifier that only amplifies voltage gain and not the current gain, and a power amplifier that necessitates power modification of the audio signal. So, this article is about making a power amplifier using a 2SC5200 Power transistor.

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PCB Prototype for $5 Only (Any Color):

Hardware Required

Circuit Diagram

Application and Uses

  • Public addressing systems.
  • Audio instruments.
  • Sound reinforcement system, etc.