How to Make Adjustable Voltage Power Supply Simple IC LM317 By thachn2 in CircuitsElectronics1,0008Save PDFFavoriteIntroduction: How to Make Adjustable Voltage Power Supply Simple IC LM317By thachn2thachFollow More by the author: About: hello everybody More About thachn2 »what you need.a voltage metera Adjustable VoltageStep 1: