I was given a task yeas ago to find out why vintage guitar pickups sound better are they get older. Sound the best right when they blow up. And why does the copper wiring get hard and brittle? I was given a set of blown up strat pickups from one of Eric Clapton's guitars.
I know this is different then speaker cable, but the conclusions, after a lot of math: wire was made differently in the 50's 60's, but Russia stall made it that way. Because of this oxidation had a much different effect on the signal. The coating on the wire changed significantly, thus also affecting the signal. There is work hardening on the wire, though very slight but significant over many years. An old crusty pickup will sound better than one pulled out of a time capsule.
Some of us out there have interconnect and speaker cables that are years old. Has anyone modeled and tested the effect of aging on them?
I know this is different then speaker cable, but the conclusions, after a lot of math: wire was made differently in the 50's 60's, but Russia stall made it that way. Because of this oxidation had a much different effect on the signal. The coating on the wire changed significantly, thus also affecting the signal. There is work hardening on the wire, though very slight but significant over many years. An old crusty pickup will sound better than one pulled out of a time capsule.
Some of us out there have interconnect and speaker cables that are years old. Has anyone modeled and tested the effect of aging on them?
Different situation. In pickups, the wire is wound as coils, so any changes in insulation and surface are reflected in distributed capacitance. There is also some speculation about the effect of aging on the magnetic materials, but (though plausible) I haven't seen any good data on that.
Thats not how it works around here...
1. Build it.
2. test it, post the results and your conclusions.
3. The great one will tell you if you are wrong or right.
See Told yah ...
You'll probably need a filled material (BeO or something like that). Drop me an email and tell me what you're trying to do and I'll see if I can point you in the right direction.
I haven't seen you demonstrate that you understand anything about physics beyond someone who slept through half of their middle school science classes. Nor might I add have I seen you engage in any sort of rational discussion. You just stomp your feet, make ad hominem attacks and wallow in self-pity.
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The other day, or electronics engineers were having a problem with an RF baord. One of the opamp way out of headroom, . I suggested the old laser trick of holding an air can upside down and spraying the clipping opamp -- The air comes out freezing that way. The opamp suddenly had headroom, the signal got considerably larger and the noise decreases until it warmed up and became its old self. If anyone is interested, I can rig up some small TEC / Heatsink to place onto an opamp. In this case you really don't need a temp controller. Just give it enough juice to hold the opamp at 10 to 15 C. PM me if you are interested.
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