When mixing my library I found 2 power supply circuits detailed drawings and so on. well prepared, easy to understand for beginners, especially electronics simply instructions, explanations about the circuit’s placement drawings. Adjustable symmetrical power supply @HAYDAR AKIN Anatolian... Electronics Projects, Simple Power Supply Circuits LM337 LM317 "power electronic projects, power supply circuit, power supply project, simple circuit projects, " Date 2019/08/03