> And a comment to John Dammeyer : refer to National semiconductor data
sheet:
> "Required if the regulator is located more then 3" from the power supply
> filter. which is not the case here.

Although you are correct with respect to the datasheet, it (almost) never
harms to include some extra decoupling, the maybe 100 cap's you will waste
over your lifetime will sooner or later save you hours of frustration. And
in the same line: *always* include a fools diode (1n400x) over each power
supply, to short it when it sudenly turns out to have the opposite of the
intended polarity (note: when your power supply is heavy, like a switcher
from a PC, you will need a bigger diode).

Wouter van Ooijen
--
Van Ooijen Technische Informatica: http://www.voti.nl
Jal compiler, Wisp programmer, WLoader bootloader, PICs kopen

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body