Post pics of your builds....

[ntrl]

Originally Posted by GregVDS

Great work!
I'm a great fan of the crossfeed circuit, and was wondering why yours have only one double dual switch, you choosed the high or low effect and decided not to change?

Thanx GregVDS! :allteeth:

This is High-Z version. I use only one double dual switch becase i want make switch "pure direct", without switch "Bypass" (but in this PCB exists holes for switchs "Perspective" and "Bypass").

[Yikes]

I posted this in the accessories forum, but since it is a DIY I thought that I’d post it here as well. It’s not as fancy as many of the projects that are shown here, but I am pleased with how it turned out. There’s also no doubt that it has improved the performance of my system.

I've finally finished my custom Balanced Power Conditioner. I'm pleased with the way it turned out. :allteeth:
The parts cost is about $750, using a 1.5 KV balanced power transformer. If you built one without the audiofool parts it would be about $350. The ACME outlets are $45 each, and the Siltech input power cable is $300.
I'm very please with the sonic results. Dynamics have been improved and bass slam is dramatically improved.

[Voodoochile]

Looks nice, Yikes. How much does that trafo weigh? It's a biggie.

[firefox360]

Do you have a schematic for that power conditioner? I'de like to build one, once I get the reassurance of my soldering skill, and get pass the fear of working with 120V of electricity.

[Yikes]

I believe that it weighs 41 Lbs.

I am not an expert; ok the truth is that I remember little of my electronics training (Navy 25 years ago). I asked for KG for a little input.

Here is a little info on what’s going on in a Balanced Power Transformer.

http://www.equitech.com/articles/widescreen.html

or another DIY possibility

http://www.geocities.com/jonrisch/catch2.htm

[Voodoochile]

Oh yes. I do recall Kevin having something of this nature implemented at his service entrance! Typical hardcore stuff for him... impressive to say the least. The toroid was gigantic.

It's a nice looking project, and I'll bet it works well.

I made a MUCH smaller isolation box for my transport using a Triad isoalation transformer. It's quite small by comparison, not suitable for an amp of any great power requirement.

[Voodoochile]

Originally Posted by firefox360

I'de like to build one, once I get the reassurance of my soldering skill, and get pass the fear of working with 120V of electricity.

Yes, you will want to be well past the fear of working with mains current. And not through lack of fear, but through full understanding of it's potential to ruin both your gear and your cardiac functionality. It's not overwhelming, but it does demand absolute respect, as it is typically unforgiving if you test it's potential to finish you off.

[philodox]

Any comments on this:

"Some might wish to use toroidal transformers instead of the recommended E-I core style transformers. DON'T! Toroidal transformers tightly couple the AC line to the secondary in a wideband manner, This means that more noise, not less, will get through to the secondary windings. Also, toroids tend to saturate much more abruptly than E-I core transformers, and need to be over rated by a much larger factor to avoid compressing the dynamic range of a power amp or other electronics."

[Taken from the second link that Yikes posted]

[Yikes]

I read that as well. I think that it isn’t as cut and dry as the author claims. In my experience designing anything is an exercise in trade offs. The person who spec’d my transformer does know about such things and he chose this Toroid.

Maybe tonight I’ll post that link elsewhere :allteeth: so that I can get KG thoughts on the matter.

[rokk]

Here is my PIMETA in it's temporary casing and with temporary wiring, i think it turned out decently.
It's going to stay this way til my new casing/cabling arrives.
I used AD843 opamps for it.