Re: Simple question about cleaning up ground line

> Why not just connect the switch itself to PCB GND instead of the noisy
> GND?

It's because I'm trying to use my existing JAMMA test switch, which is
already wired in the cab. I could also rewire the cab to have a separate
ground wire for the switch, but if there's some simple way to clean up the
ground without it, I'd like to try it.

>
> I think if you want to eliminate fluctuations in GND, you need the cap
> between the GND and a stable reference point - like the +5V. ICs on
> PCBs often have caps between their V supply and GND pins to keep the
> voltage differential between them stable.

That might work too. I've got some spare caps hanging around from a couple
of old projects, so I'll just experiment.

Thanks again for the help...

-atw

---------------------------------------------------------------------------
** To UNSUBSCRIBE from rasterlist, send a message with "UNSUBSCRIBE" in the
** message body to rasterlist-request@synthcom.com. Please direct other
** questions, comments, or problems to neil@synthcom.com.
Received on Sat Mar 30 22:27:53 2002