previous: Fred G. OK, I've read as much as I can find... -- 5/27/2000 10:52 PM

Re: Star grounding - putting it into practice

5/27/2000 11:12 PM

Steve Ahola

Re: Star grounding - putting it into practice Fred:         Maybe it is overkill but I consider the ground wires to be either signal return leads or voltage return leads, and treat them accordingly. Running leads parallel to each other can have a parasitic effect so I try to keep them separate and have them cross them at right angles whenever possible.         You might think that ground wires are "just" ground wires but they could have garbage on them which could interfere with the audio signal.         BTW for an amp with a PT CT connected to ground, I think that it is very important to run that CT to the initial PS filter cap negative return, and then run a wire from that point (isolated from the chassis) to the star ground point. I've been using 5 lug terminal strips for my star grounds, connecting all 5 lugs together and clamping the middle lug securely to the chassis using star washers. I run the PT CT/PS filter ground wire to the middle lug (which is connected to the chassis) and then run all of the various grounds to the 4 other lugs, pretty much following the signal path. It works for me!     Steve Ahola

 

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BWilliamson q{Maybe it is overkill but I consid... -- 5/27/2000 11:43 PM