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Old 13th November 2007, 10:43 AM   #1
Skorpio is offline Skorpio  Denmark
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Join Date: Mar 2004
Location: Denmark
Default Optimal grounding?

I am in the process in building a solid-state preamp, with regulated PSU and a diamond buffer. Only linear stage:

Input->selector->volume pot->buffer stage->output

How do I make an optimal grounding?

My plans are:

All GND on input/output sockets are isolated from housing. They are connected directly with wire and connected to PSU midpoint (caps after regulation). Here are also both terminals from volume attached and GND from buffers.

Housing is atteached to midpoint of first filter CAPS via 10ohm

Any problems?
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Old 13th November 2007, 11:34 AM   #2
Gordy is offline Gordy  United Kingdom
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Join Date: Nov 2006
Not a direct answer, however some references for you:

http://www.gbaudio.co.uk/data/ground.htm
Ground loops

http://www.tcaas.btinternet.co.uk/jlhearthing.htm
Grounding

http://sound.westhost.com/earthing.htm
Grounding

http://www.dself.dsl.pipex.com/ampin...balanced.htm#7
Balancing and grounding

http://rane.com/note151.html
Grounding and shielding from Rane

http://rane.com/note110.html
Interconnection from Rane

http://www.elecdesign.com/Articles/I...leID=5944&pg=1
Grounding in ADCs

http://peufeu.free.fr/audio/extremis...plement_2.html
Supply and ground in digital systems
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Old 14th November 2007, 09:43 AM   #3
Skorpio is offline Skorpio  Denmark
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Join Date: Mar 2004
Location: Denmark
Thank you very much!!
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