Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hello,

Has anyone made a circuit that has something like some digital logic
amd a pic with some long conductor paths that will drive a fluorescent
bulb? Currently I am isolating the AC signal by having an analog
ground plane that is isolated from the digital ground plane. There is
a common ground area in which both planes are connected by a path that
is at least .50 inches wide. Has anyone done something similiar and
how much noise did the bulb create? Any ideas on how to keep the
noise from traveling from the AC ground plane to the Digital ground
plane via the common ground area? Should I keep the pathway to the
common ground area to a certain minimum? Any help is appreciated!
THANKS!