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In Reply to: RE: It's a dirty job but somebody has to do it... (nt posted by peppy m. on January 03, 2025 at 23:54:14
Actually a better ones than used in standard Kegon amps pictured, and won't say a bad word about them..
Follow Ups:
Sonic subtleties seem inordinately attractive to me. So maybe I'm infected with the same virus that plagues other audiophiles...Dang it !
Edits: 01/04/25
I can't help with that. To compare apples to apples you would have to have the same transformer wired in silver and copper and try it in the same circuit. What I have is high (55%) nickel C-core full silver Audio Note transformers. I substituted top of the line Sophia Electric Opts (with WE cores) with AN silvers and all I can say is they sound "pretty". The sound became more spacious, detailed and relaxed at the same time and it didn't thin out. Would I spend $20k each on those trans? If I were Saddam Hussein or Jeff Bezos no problem, although HK rich clientele apparently can afford them too.
If one sets out to design an output transformer or any audio transformer, one finds that the properties one needs for one end of the response contradict what's needed for the upper end and there is always a 6dB/oct slope limit dictated by core saturation. This a limit to how much Voltage per turn of wire can the core produce linearly set by the max magnetic flux.
That limit is seen in any power transformer, if one has a transformer winding rated at 120V 50/60Hz, you know that at 50Hz, one is not quite at saturation and so one also knows that at 25Hz,60V produces the same core flux and at 12.5Hz,30V etc. Want a tube amp that puts out 200W at 30Hz?, it takes a core about twice that of a 200W 60Hz power transformer.
Silver is slightly more conductive than copper, silver plating has been the tradition for test equipment connectors and contacts because it's oxide is nearly as conductive and clean metal, unlike copper and aluminum.
Teflon cables are silver plated copper too, because of the high temps needed to put the Teflon on the conductor.
If you set out to design an output transformer, you find the contradictions change with scale. The R of the wire is part of the circuit where what appears to be a series L and parallel C are formed by the geometry and spacing of the primary and secondary wires. So multi-filar and segmenting the winding can reduce those issues up high.
If you are curious, obtain a transformer from something dead and take it apart while you read about them (you may need a screwdriver and small hammer)
Tom
Nt
If you have compared the parts (inductor, transformer etc) made with copper and silver a to b where the only thing that's different is the wire and come to that conclusion, then you hear some aspect of the wire having a bit less resistance on the circuit's other parts.
Normally, lower resistance is a good thing like in a transformer and since heating is proportional to the Current squared time the resistance, silver has lower losses.
What do you hear silver doing that copper doesn't do?
"What do you hear silver doing that copper doesn't do?"
Silver adds a distinct "highlighting" distortion that copper doesn't.
There are many factors involved, for your info, including but not limited to gauge of the wire, purity of metal, whether the wire has been cryogenically treated, the direction the wire is oriented when it's wrapped.
Everything matters in this hobby, synergy rules.
Nt
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