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#1 |
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diyAudio Member
Join Date: Aug 2008
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I made a crude volume control using Peretech Qtc pills,anyone tried these
regards Max ps now I know what It feels like to be a prat and cool at the same time.scary. |
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#2 |
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diyAudio Member
Join Date: Aug 2008
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So at the risk of digging a deep hole here's this idiots guide to I'm not sure what.Conductors are full of electrons,very full,they don't do nothing except move between the edges of the conductor at very nearly the speed of light,all the time,they don't slow down,ever.If you connect one conductor to another with a greater
density off electrons in it, the ones moving toward the contact point(maybe half of the difference in density)move at lightspeed into the lower one untill they reach it's edge,while doing this they work against the permitivity of space(377 ohms)and produce an electromagnetic wave,this work bit keeps on truckin'as a wave(wireless radio style).The rest off them bounce back to meet the other half who were going away from the contact point at the start,When they cross over each other their EM fields cancel each other and die down.But they don't slow down,they keep on moving between the edges of the new bigger conductor,there's nothing to stop them so they don't. This is wrong.the electrons don't move much at all,it's their interactions with each other that moves at lightspeed.Anyhoo the electrons at the edge are bouncing in and out of it all the time,and they mostly repel everything outside,shiny reflective stuff metal. Where the conductor is very tiny(nanoparticulate)the electrons have a harder time knowing where the edge(s) is are.It all gets kind of spikey,and the electrons find it easier to escape,where to ? ,to another conductor,if it's close enough.How.Here goes. |
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#3 |
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diyAudio Member
Join Date: Jul 2003
Location: berkeley ca
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It should be possible with quantum resistors. It is a 'noise-free' approach. Tends to be somewhat non-linear. Got any to try it out?
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#4 | |
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Account disabled at member's request
Join Date: Aug 2005
Location: Toronto
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Quote:
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#5 |
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diyAudio Moderator
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I just looked this up. Wow. Take some conductive rubber, a widely used technology that's been around for almost a hundred years, and make it sound exotic.
There's no "quantum tunneling" except in the trademark, the effect is quite macroscopic. It has all the Johnson noise of a resistor with a whole lot of excess noise, too.
__________________
“Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache |
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#6 |
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diyAudio Member
Join Date: Aug 2008
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Syn08
I hadn't finished digging. Sy 'fess up,you didn't measure one did you? regards Max |
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#7 |
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diyAudio Moderator
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Didn't have to, I worked in that industry for over a decade, have several related patents, a few million products in the market, and am intimately familiar with the technology. I was also a consultant to Microsoft regarding the applications of this stuff. It's pretty trivial to formulate, and there's a bout a zillion companies making the same thing. Start with Shin Etsu and Toshiba.
__________________
“Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache |
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#8 |
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diyAudio Member
Join Date: Jul 2003
Location: berkeley ca
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Well, we could still use nanotube based quantum resistors. Did you invent those too, SY?
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#9 | |
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diyAudio Member
Join Date: Jun 2004
Location: big smoke
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Quote:
__________________
Ears aren't microphones. |
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#10 | |
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diyAudio Member
Join Date: Aug 2008
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Quote:
I didn't check the noise,I don't think I could.I didn't hear anything wierd though,and I agree that It could be good in that regard. Sy I looked but I couldn't find any regards Max ps John I meant useing a pill under constant pressure as a fixed resistor |
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