> Are there any particular advantages to germanium power diodes? Somewhat lower voltage drop, as you note. But, they have poor reverse leakage performance. Replacement with silicon diodes is low cost and probably a gfood idea. If you really value the low forward drop for some reason you could use Schottky diodes - also with porer reverse leakage than silicon. RM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist