Hello Piclist, I wanted to be sure that I can use 3 diodes to drop the voltage from a 5v rail down to around 3v to drive an EPROM requiring 1.8v - 3.6. I was using an LM317T but seems a little overboard as the EPROM uses very little power. It 'seems' to work ok, just wandered if there were any pitfalls and if I should use a particular sized resistor to provide a load to get the diodes to do their thing and perhaps a capacitor to smooth things out a little. Regards Justin -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.