On Friday, June 13, 2008 6:35 AM [GMT-3=CET], Jinx wrote: > What are your thoughts on the LM350 and LM317 ? I've got > a heap of them sitting around doing nothing except getting older I made one of those with LM317/337. (1.2A only, the 350 3A) If you need more current and your transformer allows you can add some 3055 or TIP35 with a calculated R in series with each emmiter. Rgs. Dennis. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist