Grounding schemes

[J.T.]

Anyone care to share their favorite grounding scheme for amps?......i am building a JTM45 and i am decinding on a grounding scheme to 1- minimize any hum or noise and 2- to asthetically look neat

[tonedaddy]

Check out this site for a very well done JTM45 clone. There are chassis closeup shots, including one of his central point ground :
http://www.imagestation.com/album/?id=4291001387

[J.T.]

Thanks Tonedaddy!

[JacksonAmpworks]

Thanks for the link to my amp Tone Daddy!! Yes, I did build that amp, and I just sold it to a guy on eBay a few weeks ago. For that amp, I used a single point ground and it was very quiet.

Right now I'm experimenting with a true star ground on my prototype amps that I'm building, and I have nothing but good things to say about them. The layout is a lot cleaner than with a single point ground, and the noise floor has been further reduced.

From the experience that I have had with my prototypes, I will be offering all my amps with a true star ground that ends with one connection to the chassis. The only other ground on this amp will be the safety ground from the line voltage ground straight to the chassis.

Thanks again for your post!

[kwright]

Randall Aiken has a great paper on his website.

www.aikenamps.com

Go to Tech Info-->Advanced (Aiken)-->Star Grounding.

This is where I got the most info for my "Homebrew".

[JacksonAmpworks]

I second that kwright.

Randall Aiken's site has been an invaluable reference for me. He is also one of the nicest guys I have ever dealt with. Once I left a message for him on his phone and said that he could email me back to save long distance charges and he called me back within 10 minutes.

He's a very cool guy and a great source of knowledge.