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Old 3rd June 2003, 06:54 PM   #181
SY is offline SY  United States
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Anyone care to guess the number of electrons per second (or even per microsecond, if you want to belong to the Church of Must Pass RF) in a femtoamp? Or a thousandth of a femtoamp? It´s a pretty darn big number, hardly a "few."
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Old 3rd June 2003, 07:09 PM   #182
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Default Your take??

Quote:
Anyone care to guess the number of electrons per second (or even per microsecond, if you want to belong to the Church of Must Pass RF) in a femtoamp? Or a thousandth of a femtoamp? It´s a pretty darn big number, hardly a "few."
So what's your take? It seems what we're trying to talk about is not only the number -- but also their state on arrival (physical, phycological and/or otherwise).

It's complicated or am I missing s/thing?
 
Old 3rd June 2003, 07:20 PM   #183
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Quote:
Originally posted by SY
Anyone care to guess the number of electrons per second (or even per microsecond, if you want to belong to the Church of Must Pass RF) in a femtoamp? Or a thousandth of a femtoamp? It´s a pretty darn big number, hardly a "few."
Ummmm, eleventy-sebbin?

Let's see, since 1 Coulomb represents 6.24 x 10<sup>18</sup> electrons, and 1 Amp represents 1 Coulomb of charge per second, then the number of electrons per second at 1 x 10<sup>-9</sup> Amps would be (6.24 x 10<sup>18</sup>) x (1 x 10<sup>-9</sup>) or 6.24 x 10<sup>9</sup> or (in my best Carl Sagan impression) 6.24 billion electrons per second.

Yes?

se
 
Old 3rd June 2003, 07:26 PM   #184
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Default Re: Your take??

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Originally posted by Gregm

So what's your take? It seems what we're trying to talk about is not only the number -- but also their state on arrival (physical, phycological and/or otherwise).
Well, it's actually the EM wave that arrives, not the electrons. At least not the electrons at the beginning of the cable. The EM wave propagates far faster than the electron drift velocity and arrives long before any of the electrons at the beginning of the cable make it to the end, if they ever make it to the end at all seeing as audio is AC in nature.

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Old 3rd June 2003, 07:32 PM   #185
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Koinichiwa,
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Originally posted by janneman

Everytime you are pressed to come clear, you move to another square. This is no fun, I quit.
I doin't know how and why, but I suddenly get the Idea that you seem to have been expecting complete answers from me, covering all and every angle in this and some other previous discussions.

But you see, with a lot of things I don't feel like doing that. You are smart enough and educated enough in the subject to be able to find your own answers. You may find that often I merely point people into certain directions - saying "have a look there!".

The reasons for that are many, among those chief is:

"Something given has no value and as a result is not valued by those you give it to. Make them work for it and they will greatly cherish the same self thing they previously would have thrown away as having no value."

So I both expect and encourage you to do your own work. I am happy to share experiences and ideas, but they are mostly meant as pointers to things not common on the beaten path.

While it may not seem like it at times, I have no interest to "convert" people to my views or "proove" to them that I am right and they are wrong. There is no milage in that.

What I do have an interest in is to make people think and to make them explore the things often less explored. I suspect it is that more than anything what some people identify as "Guru" attitude.

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Old 3rd June 2003, 08:00 PM   #186
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hmm, maby an easier determination. does changing cables make more of a differance than moving 1 ft to the left? what about more effect as changing the position or angle of one of the spekaers? is this a HUGE effect, like a skipping CD, or a small one? when would you reccomed getting upgraded cables over say better speakers, better amplifer components, ect...
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Old 3rd June 2003, 08:19 PM   #187
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Hi,

Quote:
when would you reccomed getting upgraded cables over say better speakers, better amplifer components, ect...
What about when you suspect your cables limiting the performance of your loudspeaker, amp, preamp?

If you can do that for an outlay much more modest than changing any of the above then, why not?

It's not because there are some exorbitantly priced cables out there that you can't brew your own that can come close.

People often think that silverwire is expensive but in reality it is not that expensive at all, it offers the added advantage of lower series resistance which allows you to reduce wire diameter,
hence skin-effect if ampacity is not an issue.

Either way, it's a sound investment since if and when you upgrade yor other gear you'll be hearing it as is.

Cheers,
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Old 4th June 2003, 01:33 AM   #188
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Oops. Sorry, SY. Thought you were referring to Thorsten's 1 x 10<sup>-9</sup> figure.

At 1 Femtoamp, it'd be 6.24 million electrons and at one thousandth of a Femtoamp it'd be 6,240 electrons.

se
 
Old 5th June 2003, 11:29 PM   #189
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Yes, that's right. And, as you point out, the concept of electrons "flowing" is flawed- except at DC. When quantum theory is invoked to explain audio phenomena, it's a good indication that (Ebers-Moll and the like aside) we're dealing with wild speculation on the basis of zero reliable evidence.
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Old 5th June 2003, 11:34 PM   #190
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I'm coming a bit late in this discussion but I can only say one thing: I didn't believe cables make a difference, until I tried
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