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In Reply to: RE: Silver Cartridge Coils posted by AudioSoul on January 11, 2017 at 19:20:41
Quality silver has 4% more conductivity than Copper.
That said, a mediocre connection wipes out the advantage instantly.
Short answer: Bling Sells.
Follow Ups:
What kind of silver are we talking about vs what kind of copper? You can't just say "silver" and "copper" right?
Are we assuming 100% pure examples of both? Is that what is used in silver and copper wiring?
Do alloys make a difference? So many factors.
.
...as silver oxidation and tarnish aren't necessarily the same thing. Silver oxide is a good conductor but silver tarnish caused by sulfur or chlorine compounds is a crap conductor.
Pure silver doesn't oxidize readily but when it does, the oxidized layer usually has a light grey appearance.
Silver does "tarnish" as a result of contact with sulfur and chlorine compounds which produce the typical dark grey to black seen on silverware, jewelry and inside old silver contact type switches. It's one reason you don't put silverware in the dishwasher unless you like polishing it. These compounds are also present in homes as a result of oil or gas furnaces, gas water heaters, fireplaces and swimming pools or hot tubs. In the case of the former it's usually hydrogen sulfide and in the latter it's chlorine compounds. You can often see the yellow sulfur deposits around chimneys and vents and you can usually smell a swimming pool from a distance.
Even your tap water may have one or the other if you have chlorinated city water or well water with high sulfur content.
Cigarette/cigar smoke does it as well, but who smokes in 2017? :-)
Edits: 01/12/17
most likely enamel insulated, oxidation is not an issue. One might be able to make longer single crystal conductors out of silver, but given the typical length of the wire used for an MC coil it is not a concern, both metal can be made into a single crystal to cover it. So really it is a wash. Some of us would swear that silver and copper does sound different. in this application it is impossible to prove that.
dee
;-D
True terror is to wake up one morning and discover that your high school class is running the country.
quote by Kurt Vonnegut
.
Your point is well taken although I don't know how you came up with the number 4%. The three best conductors are silver, copper and gold in that order. Since silver is the best conductor of the three, if we let its conducting ability be equal to 100%, then copper falls in at 94.6% and gold equals 65.1%. I calculated these percentages from the table in the Wikipedia article in the link below.
Gold is often used in places where oxidation might be a problem such as switch contacts and connectors that are exposed to the atmosphere. Silver is the best conductor, but also the most expensive. Copper is much cheaper than silver and almost as good at conducting electricity. Therefore, copper is the most widely used electrical conductor.
Best regards,
John Elison
it is 6.25% 1.6, vs 1.7 but silver is heavier than copper by about 17% (10490 vs 8930). So a coil of the same dc resistance will weigh less in copper. There are other metallurgical differences that may favor silver, but i cannot really point to any in this application since both have to be insulated.
dee
;-D
True terror is to wake up one morning and discover that your high school class is running the country.
quote by Kurt Vonnegut
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