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Electronic Circuits, Schematics Diagram, Free Electronics Projects: Power Amplifier using IC LM317 Schematic Power Amplifier using IC LM317This amplifier using IC Regulator LM317, and NPN Transistor for Gain Signal.
![Simple Voltage Regulators Part 1: Noise - [English]](https://www.tnt-audio.com/gif/schem_lm317.gif "Simple Voltage Regulators Part 1: Noise - [English]")
Simple Voltage Regulators Part 1: Noise - [English]
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