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Best design for Balanced analog IC?

post #1 of 7
4/20/04 at 6:22pm
Thread Starter 
Was going to make my own out of silver wire. Is it best to keep the wire gauge sizes the same for all three (+, -, and ground?) or is it better to have the ground a thicker wire than the signals or vice versa? I'm assuming it's best to keep the signal and inverted signal as identical as possible.

What's a good gauge for each?

-Ed
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post #2 of 7
4/20/04 at 6:59pm
Ed,

Hello there. It is best to keep the wire sizes the same. For silver wire I'd go for 28 gauge, any higher and it might break on you. I could share a design idea or two with you if you want through email.
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post #3 of 7
4/20/04 at 7:36pm
There's this thing called the Eichmann Ratio™ formula.

"Named after Australian inventor Keith Eichmann – the Eichmann Ratio™ formula is a ratio between signal and return conductors, where the return has a greater cross-sectional area and mass than the signal.

The Ratio forces the return conductor to respond rapidly to signals being transmitted through the signal conductor, at the same time providing a balance of reactance between signal and return. This ensures that all frequencies and their harmonics are transmitted in a more perfect state.

The result is cleaner signal transfer. Which translates to better sound quality."

I got this from their website
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post #4 of 7
4/20/04 at 10:39pm
on my homegrown audio silver lace XLR (premade, maybe I'll go for a kit next time) pin 1 (ground) has four wires... pin 2 and pin 3 have two wires each. all the wires are the same diameter. check out their site, you should find some more info I'm sure.
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post #5 of 7
4/21/04 at 1:25am
Personally I'm using 24 gauge silver for both conductors with slightly larger 18 gauge teflon tubes which sounds fantastic. The reason behind the larger teflon tubes is so there is more air around the conductors, same way Bogdan does it but I think he uses 10-12 gauge teflon tubing.
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post #6 of 7
4/21/04 at 1:40am
Thread Starter 
Quote:
Originally Posted by highflyin9
Personally I'm using 24 gauge silver for both conductors with slightly larger 18 gauge teflon tubes which sounds fantastic. The reason behind the larger teflon tubes is so there is more air around the conductors, same way Bogdan does it but I think he uses 10-12 gauge teflon tubing.
The extra space makes it easier to slid the wire into the entire length of the tubing as well, I'm sure.

-Ed
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post #7 of 7
4/21/04 at 2:22am
Quote:
Originally Posted by Edwood
The extra space makes it easier to slid the wire into the entire length of the tubing as well, I'm sure.

-Ed
Yes it's very pleasant not getting any resistance from the tubing along 3.3 feet, teflon is somewhat slippery though so its generally not much of a problem with smaller gauge, just have to inch it along.
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