Aim tti single power supply 0 15v 0 5a pl155 aim tti pl155 p over the years the pl series has been steadily revised and extended hundreds of thousands of pl series units are currently in use across the world and it remains the laboratory power supply of choice for many organisations p p the aim tti single pl155 achieves an exceptional power density for a linear regulated power supply by offering up to 90w from a frac14 rack 3u sized casing p p this gives it an unusual