Ground Bus

[PlinytheWelder]

FWIW, I did mine with a modified multi star ground like Allyn's 80W Express with a few touches from Aiken's scheme.

http://www.aikenamps.com/StarGround.html

Quiet as a tomb...

[Gibsonman63]

Here is a couple of pictures of my ground bus. Basically 12AWG bare wire roughed up with sandpaper. I am starting a new thread with the rest of the build pictures; Meet Lori Pearl[/img]

[RJ Guitars]

Here is a couple of pictures of my ground bus. Basically 12AWG bare wire roughed up with sandpaper. I am starting a new thread with the rest of the build pictures; Meet Lori Pearl[/img]

+1 for a well mounted ground buss and add a couple bonus points for not cooking your pots as you attempt to mount the buss wire directly to them. Since most pot housings ground directly to the chassis anyway you don't really need the added ground - in fact that could be a -1 for building in a ground loop. Give yourself even one more point for making the amp much more service friendly when you need to replace a pot sometime down the road.

IMHO - Aiken has a lot of good info and his approach to grounding will generally result in a quieter amp. As a general rule how you ground your amp is not going to change the tone of your amp but it will dictate how much unwanted noise you will or won't have.

rj

[jerrydyer]

http://www.c3amps.com/EnlargementPages/ ... oPots.html

Or mount the bar on standoffs to make pot swaps easier.

Or just run pot grounds to board or lug.

Im confused about the buss wire for heaters. Your amp looks killer but it defies everything Ive been taught about heater wires. is it all just BS. ? thanx
I would love to just run nice straight lines like that.

[Gibsonman63]

I am a little confused by your question. I haven't run my heater wiring yet. The bus bar I ran is for signal grounds. For everything else I am using grounding tabs that go under the transformer bolts.

Or maybe I am just missing something. I seem to be learning something new here every day.

[M Fowler]

He was talking about the DC type filament wiring in the SLO Clone shown earlier.

[dynaman]

http://www.c3amps.com/EnlargementPages/ ... oPots.html

Or mount the bar on standoffs to make pot swaps easier.

Or just run pot grounds to board or lug.

Im confused about the buss wire for heaters. Your amp looks killer but it defies everything Ive been taught about heater wires. is it all just BS. ? thanx
I would love to just run nice straight lines like that.

Running straight wire is fine if you pay attention to lead dress and layout. I've worked on many Marshalls that only had a couple (if any) twists. There are a gazillion amps with PCB board-mounted sockets. Pretty hard to twist board traces.

FWIW, I haven't used DC heaters in a couple of years and never had a problem.

[PlinytheWelder]

I posted pics of my heater wiring on sites like Harmony Central and TGP and the first thing out of everyone's mouth was "You need to twist those heater wires more!"

It turned out fine as it is....