Ground Loop

Here is a great article on the subject by Charles Hansen

07-20-08: Musicnoise
Connect all chasses together, so that you have one electrical point, use large guage wire. Now use one path to earth from the chassis - i.e. one wire. This should eliminate a ground loop problem.

Problem is if a piece of equipment introduces a ever so slight ground fault current in the signal ground to equipment ground I believe the ground loop hum will still be present and will still travel through the ics.

With your added chassis ground the ics are still running parallel with it.

The offending piece of equipment or ic needs to be identified and corrected....... Jmho.

08-16-08: Rleff
Here is a excellant paper on hum and buzz in a unbalanced interconnect system; google jensen an-004;written by Bill Whitlock.

Bill Whitlock
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