If wires can be "broken in" then surely that is an indication that the wires are beginning to degrade? I would expect a properly specified wire to be stable over a long period of time. Would not expect the characteristics to change.
When does the burn in end? When the wire has stopped functioning?
Paul
When does the burn in end? When the wire has stopped functioning?
Paul
A wire is a lowish value capacitor, usually fed from a low impedance source. The dielectric/insulation would have to be spectacularly bad for it to have any audible effect (or the source would have to be very poorly engineered). A capacitor acting as a filter within the audio range is in a different situation, but even there effects are smaller than some people imagine.simon7000 said:
Also, a wire is a lowish value resistor usually feeding a high resistance load. The wire would have to have significantly poor conductance or nonlinearity for this to be audible; worse than a potato.
The necessary magnitude of non-ideal behaviour would be clearly seen in other (non-audio) applications of wires. As far as I know it has not been seen. It is difficult to think of a waveform or other treatment which will improve a component which is already the nearest thing we have in electronics to ideal behaviour.
Well I have been wrong so many times that now; hey we should check out it *ALL* out.
Even on what is considered 'case closed' such as electrodynamics. Turns out Lorenz/Maxwell/Einstein were wrong. I know this very controversial and borders on religious heresy.
So maybe there is something to the cable cooker.
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Even on what is considered 'case closed' such as electrodynamics. Turns out Lorenz/Maxwell/Einstein were wrong. I know this very controversial and borders on religious heresy.
So maybe there is something to the cable cooker.
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Well I have seen bad dielectric, poor audio design and all sorts of other issues. But the original question was quite with merit. How to build a gizmo to test the break in theory without spending significant money. Now as I can actually measure small changes in wire I think I will try it. Of course measuring a small change does not mean you can perceive it.
I will try to keep it to a few sentances.
1.Skin depth equations: known wrong, all underground installations abandoned,rebuilt, buried HV power lines non linear thermal issues
2.Conservation of momentum vs energy (easy lab test) Graneau-Graneau Newtonian Electrodynamics pg 169 Ek=1/2mv2
3.SRT - big failures everywhere first observed in early 80's star wars railgun
4.non-local action - Entanglement "spooky action at a distance"
it goes on and on.
Just keep a open mind , is what I'm saying. I personally have moved on and checking out Godel's 'World without time'
https://www.amazon.com/World-Without-Time-Forgotten-Einstein/dp/0465092942
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Scott and any others still awake..
Attached is the FFTs of my standard 10 DUT bridge with capacitors. I used a small metal chassis, soldered in the bridge, measured straight from my stock and after a year in a 1 gallon paint can that contains silica gel packs.
The silica gel came in the can. Please note I had to up the FFT averages to 1024 to get the increased resolution required to show the after.
For those who haven't seen my method, it is a Wheatstone bridge composed of 4 DUT under test in series parallel feeding 1 DUT and the other side is swapped 1 DUT feeding 4. This reduces the fundamental limited by matching values and allows the harmonics to be seen.
Attached is the FFTs of my standard 10 DUT bridge with capacitors. I used a small metal chassis, soldered in the bridge, measured straight from my stock and after a year in a 1 gallon paint can that contains silica gel packs.
The silica gel came in the can. Please note I had to up the FFT averages to 1024 to get the increased resolution required to show the after.
For those who haven't seen my method, it is a Wheatstone bridge composed of 4 DUT under test in series parallel feeding 1 DUT and the other side is swapped 1 DUT feeding 4. This reduces the fundamental limited by matching values and allows the harmonics to be seen.
Attachments
aether, perhaps?
There are any number of cranks out there and the internet has made it possible for anyone to spout off on anything. I could sit and read some page I half understood and come up with dreamy theories like: "dark matter and dark energy are the missing aether that descarte was on about in the 1600s" etc... just because someone doesn't take the time to disabuse me of this notion does not mean I am right....
I was curious; I thought he might give me a list of websites I need not read.SY said:
Like all good physicists I have an open mind; however it is vital to distinguish between an open mind (which accepts new ideas - even if counter-intuitive - backed up by good experimental data and plausible explanations based on what is already understood) and an empty mind (which accepts any old rubbish, especially if accompanied by a good but unverifiable story which ignores known facts).jfetter said:
I say "based on what is already understood" because non-scientists seem mostly unable to grasp the continuity between classical physics and 'new' physics (e.g. QM and GR). In both cases what we already knew emerges as a valid approximation when we don't need to use the new stuff; just like circuit theory emerges from EM. Hence we can be sure that no new physics will ever 'explain' audio cables, because we are firmly in the circuit theory approximation (low frequency) of EM, which is the low energy approximation of QED and no audio cable is big enough to need GR. Of course, we need quantum theory to explain conductors and insulators, but that is a separate issue.
ha I have seen all thse coments many times.
but now since we know more or less where the errors are, real advances are possible.
The group of new grads i recently mentored ( most Ph.D, Rice, UT ,Purdue) thought it was silly to quuestion what they had just spent a lot of time and $$$ to learn.
But several have come around now and see the discrepancies.
Commerical use includes a better understanding of pulsed plasma mining.
There is also a new start up in Houston not so much using new physics but looking at the designs and optimizing. They are one of the few companies with new contracts this year in oil/gas.
Thats how it works. Out with the old ideas. In with the new.
We have to be careful things do not become an arguement of religous beliefs.
cheers
bruce
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but now since we know more or less where the errors are, real advances are possible.
The group of new grads i recently mentored ( most Ph.D, Rice, UT ,Purdue) thought it was silly to quuestion what they had just spent a lot of time and $$$ to learn.
But several have come around now and see the discrepancies.
Commerical use includes a better understanding of pulsed plasma mining.
There is also a new start up in Houston not so much using new physics but looking at the designs and optimizing. They are one of the few companies with new contracts this year in oil/gas.
Thats how it works. Out with the old ideas. In with the new.
We have to be careful things do not become an arguement of religous beliefs.
cheers
bruce
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Following this discussion, and the references to Pano's potato, I'm going to patent the baked potato cable....
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