Can you please explain what exactly is the ground loop?
I am trying to eliminate the hum between foreplay 3 and VTA st70
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Pooch wrote: "A common case would be a piece of equipment grounded via its power cord and also grounded to another piece of equipment via the shield of an RCA cable".
Is this to say a non grounded component could be effectively grounded through the shield to the other grounded component? IE non grounded Dynaco amp through RCA cable shield to grounded preamp.