Simple Linear Adjustable Power Supply Tutorial (Based Around LM317) by JumperOneTV… – [via]
Adjustable LM317-based power supplies are an easy way to get custom voltages for your benchtop. Also check out the MIC2941 which has some nice benefits such as ultra-low dropout, 1.25A current output and a separate biasing pin. Its nearly a drop in replacement for the LM317 – albeit a little more expensive.
Simple Linear Adjustable Power Supply Tutorial – [Link]