> I would put the diode across the LED, not in series

Similar to adding an anti-parallel 1N4148, as in another post

Then the configuration in that pdf could be looked at as a series of
anti-parallel pairs rather than two strings mashed together

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist