Posted on Monday, 6th February 2012 by Auw Jimmy

This article, for most people, considered as ‘snake oil’ or made by ‘retarded audiophool guy’ (could be me). I just throw a little bit idea in this post, but feel free to try. During this stage, I will not share too many thing (still on experimental stage). But if you are interested to find out more, ‘MDI’ and ‘Pierre Johannet’ could be your next keywords at Google. Feel free to dig more.

At some parts, air is the most natural insulation, but has very low breakdown voltage. Although some people claim Teflon as the most superior insulation with very high breakdown voltage, but at some point, I would rate Teflon as slightly analytical sounding. In order to have ‘just enough’ protection and ‘good sounding application’, we can go with things just similar spec with air (a little bit better, I think). Well, name it cotton, paper, natural fiber, silk, etc. Feel free to experiment with them.

For the conductor, off course, pure material is a must. Either pure copper or pure silver. I would choose for pure silver whenever possible (I mean, whenever I can afford it).

As we are picking an insulation with lower breakdown voltage, then it also means lower protection from environment outside. Then another protection is a must. After several experiments, I come up with a block of wood with specific distance to separate or isolate them (the cables in this context). Sometime I also combine with a tinned copper rod as separator or insulator to prevent oxidation.

The wood block was made by my good friend, Mr. AS from somewhere around West Java, Indonesia. It was a very nice wood block with very accurate cut (machine made for sure). Thanks a lot for such a good work, bro!

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Tags: Cable, Copper, MDI, Pierre Johannet, silver
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Posted on Monday, 1st September 2008 by Auw Jimmy

Don’t ask me why I write this article. It’s just that… I like to learn new things… Everything. Just sometimes I get enough with my daily IT life, then why don’t I learn something new. Let’s say, a diamond

I have learned around, and got simple answer to pick a diamond: Color, Clarity, Cut, and Carat. It’s about 4C, no matter who come first – but I prefer Color and Clarity as first two, then followed by Cut and Carat.

Color
As easy as the word means, Color will define the color of a diamond. According to GIA (Gemological Institute of America), a name related with diamond certification, there are range from D to Z to define the color of a diamond. D means colorless diamond, while Z mean yellowish diamond. Colorless diamond means higher price (so a diamond with D color grade will be more expensive compared to a diamond with G color grade). Most diamond on the market (for jewelry or wedding ring) will have F or G grade (shouldn’t go beyond G if you want a colorless diamond). This grade should be expensive and colorless enough for common eyes. You will need a reference/master color set of diamond to do the comparison. Get the colorless diamond if you plan to combine diamond with silver/white gold, while you can go with lower color grade (yellowish) diamond if you plan to combine it with yellow gold. Another kind of diamond color is red or pink. This is very rare and expensive also. Here’s is some color classification (the color naming guide may vary a little bit, but most expensive “real” diamond will not go beyond G color grade):
- D-F: Colorless
- G-J: Near Colorless
- K-M: Faint Yellow
- N-R: Very Light Yellow
- S-X: Light Yellow
- Y-Z: Yellow

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Tags: diamond, gold, jewelry, silver, wedding ring
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