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Gold wire for interconn?

206.132.230.115
Posted on July 14, 1999 at 18:54:07
ljordan


 
Any body try gold wire for interconn? A jewlers metal supplier can have it drawn for me from std.24k stock for gold cost plus fee. I think 30awg would suffice(30ga=INCH??). Gold $ low right now. Would use FEP foam core and a Risch design. Hmm No corrosion, but how to secure in a core w/ 22 ga hole???

Lewis

 

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Do it, and let us know might be interesting feedback...nt, posted on July 14, 1999 at 21:28:51
Bob Meyer


 


 

Not the best conductor!, posted on July 15, 1999 at 00:45:09
LGJ


 
Gold is only used because of the oxidation protection as a conductor silver and copper is much better. Some producers of connectors know this. They use rhodium instead of gold because it is also not corrosive but an even better conductor! (Though not as good as silver/copper). Try having a look in some data books with physical standards and you would see what I mean.

PS. The weight of the gold might dampen the movements in the cable!! If you are loaded it might be worth a try.

Regards
Lasse

 

Re: Do it, and let us know might be interesting feedback...nt, posted on July 16, 1999 at 15:56:14
ljordan


 
not w/o investors. I think I may try #30 silver in a teflon foam jacket (used for # 22) I don't know how to secure in bigger hole.

Lewis

 

Re: Not the best conductor!, posted on July 17, 1999 at 08:00:37
Jon Risch


 
The conductivity of an interconnect is not a big issue. Due to the rel;atiovely high input impedance of most gear, even SS, an interconect would have to be very high in resistance to affect ther amplitude at the other end. Theoreticaly, if the conductro was not introducing any non-linearities, a simple amplitude reduction would be of little consequence anyway.

As an example, an IC would have to have a round trip resistance of about 10k ohms to reduce the signal level 6 dB, with a typical 10k ohm SS amp input Z.

Jon Risch

 

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