> >d) the attached, which shows the two ends look like the letters > > Oh, very good Jinx. I do like that one. One of those funny coincidental things that I spotted recently when copying/pasting circuit elements into a diagram. Even more coincidental that knowing a and k should come up just now -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist