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Why do you think you need better than 99.95% or so (common electricalDoes anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
I think you will have to add the insulation yourself:Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
--
kensmith@rahul.net forging knowledge
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
--
kensmith@rahul.net forging knowledge
From audio component freaks?Does anyone know where I can find some 99.9999% pure copper wire?
Copper is diamagnetic, so its presence will distort a magnetic field.Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
http://www.sigmaaldrich.com/suite7/Area_of_Interest/Organic___Inorganic_Chemistry/Materials_Science/Thin_Films_Microelectronics/Product_Tables/High_Purity_Metals.htmlOn Mon, 3 May 2004 21:29:17 +0000 (UTC), kensmith@violet.rahul.net
(Ken Smith) wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
No! How can you say such a thing!?! Any audiophile can clearly hear theOn Mon, 3 May 2004 21:29:17 +0000 (UTC), kensmith@violet.rahul.net
(Ken Smith) wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
Copper is diamagnetic, so its presence will distort a magnetic field.
This is a problem for the RF coils in NMR systems, where they'd like
their fields to be uniform to a few parts in 1e10. People sometimes
plate copper electrodes with mysterious stuff to make it closer to
magnetically neutral.
Some audio people will claim to sell you wire that's "five nines" or
"seven nines" but they mostly buy Belden and lie.
fair question:Ken Smith <kensmith@violet.rahul.net> wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
Why do you think you need better than 99.95% or so (common electrical
wire purity).
I didn't think Alpha Wire did its own copper. I'll check it out.www.alfa.com ?
I doubt it; They've mostly got ordinary copper wire in a fancy jacket that"Ken Smith" <kensmith@violet.rahul.net> wrote in message
news:c76djd$oqv$1@blue.rahul.net...
Does anyone know where I can find some 99.9999% pure copper wire?
From audio component freaks?
Yes, if you can find copper that is clean enough. All of the copper I'veOn Mon, 3 May 2004 21:29:17 +0000 (UTC), kensmith@violet.rahul.net
(Ken Smith) wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
Copper is diamagnetic, so its presence will distort a magnetic field.
Yes and there is no mysterious coating that lowers mu hence the need toThis is a problem for the RF coils in NMR systems, where they'd like
their fields to be uniform to a few parts in 1e10. People sometimes
plate copper electrodes with mysterious stuff to make it closer to
magnetically neutral.
How about: not "they mostly" but rather "every doggone one of them"Some audio people will claim to sell you wire that's "five nines" or
"seven nines" but they mostly buy Belden and lie.
the UK, I needed some high purity coper wire as part of an instrument, andIn article <Mhzlc.37189$h44.5599860@stones.force9.net>,
Ian Stirling <root@mauve.demon.co.uk> wrote:
Ken Smith <kensmith@violet.rahul.net> wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils
for
some experiments.
Why do you think you need better than 99.95% or so (common electrical
wire purity).
fair question:
99.95% wire is even getting hard to get these days. I we need a
conductive material with a mu very close to thatof free space. These
coils are part of a highish performance magnetometer. If it wasn't for
the impurities, this magnetometer would have an absolute accuracy limited
only by the accuracy of the frequency reference.
I'd suggest you need to talk to one of the specialist material companies. In
That's Alfa Aesar, a lab supply outfit, not Alpha Wire. If they haveIn article <oRClc.3195$a47.1422@newsread3.news.atl.earthlink.net>,
Martin Riddle <martinriddle@hotmail.com> wrote:
www.alfa.com ?
I didn't think Alpha Wire did its own copper. I'll check it out.
Promptness... I'm visualizing a musical with dancing electronsOn Mon, 03 May 2004 20:51:07 -0700, John Larkin wrote:
Some audio people will claim to sell you wire that's "five nines" or
"seven nines" but they mostly buy Belden and lie.
No! How can you say such a thing!?! Any audiophile can clearly hear the
difference between four-nines and five-nines - it makes the soundstage
dramatically more palpable, and vastly increases presence, expansiveness,
and promptness.
-----Why, just this morning, I was noticing the deictic
dejecture and holocryptic palladian borborygm emanating from my stereo. It
was somniloquacious. Thank God for $100 per foot five-nines copper.
-- Mike --
Jenlabs advertises high-purity wire. I don't know if they'll sell it toIn article <Z7Elc.9726$fE.4394@fed1read02>,
Richard Henry <rphenry@home.com> wrote:
"Ken Smith" <kensmith@violet.rahul.net> wrote in message
news:c76djd$oqv$1@blue.rahul.net...
Does anyone know where I can find some 99.9999% pure copper wire?
From audio component freaks?
I doubt it; They've mostly got ordinary copper wire in a fancy jacket that
works like a lens to make the copper look better. Besides I need #22 they
all use 14 or heavier.
If _your_ customer base believed that dipping a piece of wire in liquidIn article <cf4e90p6g5q4ia9qgc7c3b74or6mbuluip@4ax.com>,
John Larkin <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote:
On Mon, 3 May 2004 21:29:17 +0000 (UTC), kensmith@violet.rahul.net
(Ken Smith) wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils for
some experiments.
--
Copper is diamagnetic, so its presence will distort a magnetic field.
Yes, if you can find copper that is clean enough. All of the copper I've
found has a paramagnetic property.
This is a problem for the RF coils in NMR systems, where they'd like
their fields to be uniform to a few parts in 1e10. People sometimes
plate copper electrodes with mysterious stuff to make it closer to
magnetically neutral.
Yes and there is no mysterious coating that lowers mu hence the need to
find some clean wire.
Some audio people will claim to sell you wire that's "five nines" or
"seven nines" but they mostly buy Belden and lie.
How about: not "they mostly" but rather "every doggone one of them"
They stop returning phone calls as soon as the fact that we need #22 that
is clean and can tell if it isn't comes up.
And make sure that the subcontractor maintains the purity. You may have"Ken Smith" <kensmith@violet.rahul.net> wrote in message
news:c78avd$mge$1@blue.rahul.net...
In article <Mhzlc.37189$h44.5599860@stones.force9.net>,
Ian Stirling <root@mauve.demon.co.uk> wrote:
Ken Smith <kensmith@violet.rahul.net> wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils
for
some experiments.
Why do you think you need better than 99.95% or so (common electrical
wire purity).
fair question:
99.95% wire is even getting hard to get these days. I we need a
conductive material with a mu very close to thatof free space. These
coils are part of a highish performance magnetometer. If it wasn't for
the impurities, this magnetometer would have an absolute accuracy limited
only by the accuracy of the frequency reference.
I'd suggest you need to talk to one of the specialist material companies. In
the UK, I needed some high purity coper wire as part of an instrument, and
Rautomead International were able to help. Basically they produced a super
quality thick wire 'rod', that was then made into wire by a subcontractor.
The company who supplied the equipment they used, was NGO Han in Vietnam.
Best Wishes
It was harder to find somebody who could reduce the wire to the requiredRoger Hamlett wrote:
"Ken Smith" <kensmith@violet.rahul.net> wrote in message
news:c78avd$mge$1@blue.rahul.net...
In article <Mhzlc.37189$h44.5599860@stones.force9.net>,
Ian Stirling <root@mauve.demon.co.uk> wrote:
Ken Smith <kensmith@violet.rahul.net> wrote:
Does anyone know where I can find some 99.9999% pure copper wire?
I need some pure #22 gauge wire to wind some very non-magnetic coils
for
some experiments.
Why do you think you need better than 99.95% or so (common electrical
wire purity).
fair question:
99.95% wire is even getting hard to get these days. I we need a
conductive material with a mu very close to thatof free space. These
coils are part of a highish performance magnetometer. If it wasn't for
the impurities, this magnetometer would have an absolute accuracy
limited
only by the accuracy of the frequency reference.
I'd suggest you need to talk to one of the specialist material
companies. In
the UK, I needed some high purity coper wire as part of an instrument,
and
Rautomead International were able to help. Basically they produced a
super
quality thick wire 'rod', that was then made into wire by a
subcontractor.
The company who supplied the equipment they used, was NGO Han in
Vietnam.
Best Wishes
And make sure that the subcontractor maintains the purity. You may have
to choose your contaminant -- if it's drawn through dies it'll pick
stuff up no matter what.
_Very_ true.