AC Ground on a Gainclone Supply - diyAudio
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Old 28th June 2011, 11:41 PM   #1
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Location: Seattle, WA
Default AC Ground on a Gainclone Supply

Excuse me if this has already been answered, however, I am new to the forum.

With an AC power lines wired, you have the following:

AC GND AC

Usually, when wiring these to an adjustable or gainclone power supply, you connect one AC main to the fuse, and the fuse to the transformer, and the other AC main to the transformer (both x-fromer connections are usually black, eh?)

Where is the ground from the AC mains best wired to?

I am thinking that it should be (on a positive/negative supply) wired to the reference point between the positive and negative voltages on the supply.

Is this correct?

Thank you in advance for your help with this wiring.



Happy Trails!
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Old 29th June 2011, 03:08 AM   #2
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No, wire it to the chassis. This is normally done by soldering or attaching to a lug or bolt which is threaded through the chassis.
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Old 29th June 2011, 05:17 PM   #3
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There is an excellent guide to all things chip amp here.

Building a Gainclone chip amp power supply.

Hope it helps.

John
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Old 1st July 2011, 03:07 AM   #4
gootee is offline gootee  United States
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Quote:
Originally Posted by Robert F View Post
No, wire it to the chassis. This is normally done by soldering or attaching to a lug or bolt which is threaded through the chassis.
Actually, since it is the safety earth ground, it should be either bolted or welded to the chassis, never soldered.
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Old 1st July 2011, 03:59 AM   #5
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Thank you all for your fabulous responses.

I will wire the Earth Ground to the chassis via a lug.

Also, I will read the entire gain clone construction manual, and hopefully that will help me foresee future dilemmae such as this one and answer a few lingering questions.

You are all fantastic!

Happy Trails

David Daniel Graham
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Old 1st July 2011, 11:59 AM   #6
AndrewT is offline AndrewT  Scotland
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add this to your reading list
Audio Component Grounding and Interconnection
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regards Andrew T.
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