> Get some 7805 5v regulators and LM324 opamps.

Throw in some LM317's (or standardise on them) so you can always get any
positive voltage you need.

Plus consider some low dropout and/or low quiesecent current regulators for
battery operation. (LM2936 is all of these but dear for what it does). There
are many others.


        RM

_______________________________________________
http://www.piclist.com
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist