Grounding cable gauge size

Agree Ozzy, but with your meter you may be surprised that the  signal grounding is part of the chassis which may also be the AC grounding. Pull your power cable and check the exterior or the RCA connectors to the ground plug and you may find they are the same.

bugremachine,

You are probably right about the rca ground being the same as the chassis ground. But my personal experience has not been good when I mixed the chassis ground and the signal ground. In several cases I got hum.

My solution has been and is now to keep them separate. Perhaps some time, I will check it with an ohm meter.

Question: Are you also referring to the ground on the AC outlet being the same as the signal ground?

ozzy

Thank you Ozzy for trying this stuff and reporting your results, I think it was you that put me onto the Puritan power filiters which continue to wow me.

Just read an Analog Corner article from Nov 2021 on electrical wiring that I thought might interest:

Thank you. It is refreshing to be able to post on audiogon without the various crazies chiming in.

ozzy

Yes, the ground of your AC IEC can be the chassis, which can also be the signal ground of an RCA connector. So saying we keep them separate, which I also try to do with 2 ground rods, is kidding ourselves. So something to be aware of as Ralph pointed out, component manufacturers have vastly different schemes. So beware.

I use the Puritan out through the Groundmaster to a rod in mother earth. I ran a separate ground rod for the signal grounds, but in my case they are the same as some of the power grounds. So creating a loop is a risk. I cannot say I have done that but with 2 rods outside I find it hard to believe they will travel back, especially with Groundmaster in place.