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Henry

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Mar 8, 2010, 9:25:44 PM3/8/10
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Does anyone have a good source for some really tiny, but powerful magnets,
preferably all weather type?

Ignoramus8009

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Mar 8, 2010, 9:33:37 PM3/8/10
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On 2010-03-09, Henry <ohe...@razbanyisiatibenefuchi.com> wrote:
> Does anyone have a good source for some really tiny, but powerful magnets,
> preferably all weather type?

http://ef.algebra.com/

Henry

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Mar 8, 2010, 9:35:08 PM3/8/10
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"Ignoramus8009" <ignora...@NOSPAM.8009.invalid> wrote in message
news:naqdnQAHz8ocLgjW...@giganews.com...

Thanks, but I already have an oscilloscope!

Jim Stewart

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Mar 8, 2010, 9:36:16 PM3/8/10
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Henry wrote:
> Does anyone have a good source for some really tiny, but powerful
> magnets, preferably all weather type?

I've purchased neodymium magnets from these people:

http://unitednuclear.com/index.php?main_page=index&cPath=70_79&zenid=65316c642f1ab6d3b8b6bc8c316d39d9

Scary strong.

Carl Ijames

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Mar 8, 2010, 9:47:31 PM3/8/10
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I've bought small quantities from www.kjmagnetics.com (he also sells on
ebay) and the ebay store emovendo, and been happy with both. The first two
shipments from kj included samples - a 3 mm dia cylinder and a 3 mm cube. I
know they have 2 mm dia discs, don't know how much smaller. These are N42
neodymium boron iron rare earths. KJ has some N48's if you need stronger.
Emovendo has "pushpins" that are about 1/2" diameter and 1" tall that will
pin 20-30 pages of notebook paper to a metal surface like a refrigerator.
Gave a bunch away as stocking stuffers one year :-).

-----
Regards,
Carl Ijames

"Henry" <ohe...@razbanyisiatibenefuchi.com> wrote in message
news:4b95...@news.x-privat.org...

Henry

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Mar 8, 2010, 9:50:31 PM3/8/10
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"Jim Stewart" <jste...@jkmicro.com> wrote in message
news:hn4c6s$3d3$2...@news.eternal-september.org...

I'll look at those, thanks!

Henry

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Mar 8, 2010, 9:51:27 PM3/8/10
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"Carl Ijames" <x...@yyy.zzz> wrote in message
news:hn4cq...@news4.newsguy.com...

Do these hold up well in the elements? My usage will be outdoors, 4 seasons.

dca...@krl.org

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Mar 9, 2010, 8:03:45 AM3/9/10
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On Mar 9, 2:33 am, Ignoramus8009 <ignoramus8...@NOSPAM.8009.invalid>
wrote:

Thanks. I have bookmarked it.

What I would like is a way to search multiple categories for
everything that is close to me. I used to search " business and
industrial " with nothing in the search term box. This let me see
interesting things close to me that I might want and not pay any
shipping. It would have been better if I could have picked only some
of the categories in business and industrial.

But Ebay " improved " things so that no longer works at the " business
and industrial " level. It will work on say " manufacturing and
metalworking " , but then I do not see things under " Electrical and
Test Equipment ".

Dan

Ignoramus17831

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Mar 9, 2010, 8:28:49 AM3/9/10
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On 2010-03-09, dca...@krl.org <dca...@krl.org> wrote:
> On Mar 9, 2:33?am, Ignoramus8009 <ignoramus8...@NOSPAM.8009.invalid>

I used to do the exact same thing, and cannot do so anymore due to
ebay changes.

Since there is one more person in the same boat, maybe I can write a
perl script to find results in multilpe subcategories and merge
them. It would be a webpage. Let me know if you would be using it,
then I will write it.

i

Jerry Wass

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Mar 9, 2010, 8:56:42 AM3/9/10
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Henry wrote:
> Does anyone have a good source for some really tiny, but powerful
> magnets, preferably all weather type?


Google neodiyium magnets

Michael Koblic

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Mar 9, 2010, 9:10:43 AM3/9/10
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"Henry" <ohe...@razbanyisiatibenefuchi.com> wrote in message
news:4b95...@news.x-privat.org...
> Does anyone have a good source for some really tiny, but powerful magnets,
> preferably all weather type?

Define tiny and powerful. I get mine from Lee Valley.


--
Michael Koblic,
Campbell River, BC

Ed Huntress

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Mar 9, 2010, 9:11:50 AM3/9/10
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"Jerry Wass" <wassb...@tds.net> wrote in message
news:ussln.106$Sp1...@newsreading01.news.tds.net...

Or try neodymium magnets. d8-)

--
Ed Huntress


Tim

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Mar 9, 2010, 9:14:04 AM3/9/10
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On Mar 8, 9:25�pm, "Henry" <ohe...@razbanyisiatibenefuchi.com> wrote:
> Does anyone have a good source for some really tiny, but powerful magnets,
> preferably all weather type?

I have used KJ magnetics on Ebay for small amounts. For my larger
orders I use www.magnet4less.com. Prices are very good and they have a
huge selection. Nickel plating or Best corrosion-resistant coating
Epoxy + Nickel + Copper + Nickel 4-layer coating!

Tim
"A-LEE-SAM"
alisam.com
reproduction South Bend lathe tools and more!

Bob La Londe

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Mar 9, 2010, 9:36:53 AM3/9/10
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"Henry" <ohe...@razbanyisiatibenefuchi.com> wrote in message
news:4b95...@news.x-privat.org...
> Does anyone have a good source for some really tiny, but powerful magnets,
> preferably all weather type?

Search for Rare Earth and Neodymium. I use rare earth all the time, but all
weather could be a problem since all magnets contain iron, and iron rusts.
You can encase them in plastic, or in the case of alarm contacts they come
partially encased in plastic. What are you trying to do?

RBnDFW

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Mar 9, 2010, 11:07:42 AM3/9/10
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whatever <G>

Steve B

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Mar 9, 2010, 11:27:29 AM3/9/10
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>
> > Does anyone have a good source for some really tiny, but powerful
> > magnets,
> > preferably all weather type?
>

I got what I think was a good deal from www.magnetsource.com

Steve


Steve B

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Mar 9, 2010, 11:41:21 AM3/9/10
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"RBnDFW" <burkh...@gmail.com> wrote in message
news:hn5rnl$c3d$1...@news.eternal-september.org...

When I google neodiyium magnets, it takes me to neodymium magnets. Are they
the same? What are the basic differences in metallurgy? Am I being
redirected by malware? Should I be concerned? Is this another Obama
conspiracy to pirate a private market?

Steve ;-)


dca...@krl.org

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Mar 9, 2010, 2:16:04 PM3/9/10
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On Mar 9, 1:28 pm, Ignoramus17831 <ignoramus17...@NOSPAM.
17831.invalid> wrote:

> I used to do the exact same thing, and cannot do so anymore due to
> ebay changes.
>
> Since there is one more person in the same boat, maybe I can write a
> perl script to find results in multilpe subcategories and merge
> them. It would be a webpage. Let me know if you would be using it,
> then I will write it.
>
> i

I would think that a lot of people would like a way to search in
multiple subcategories. If it would automatically load the
subcategories, it would be slick. Just click on your webpage in the
bookmarks, and bingo you are looking at what you are interested in.
Yes I would use it.

Dan

dca...@krl.org

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Mar 9, 2010, 2:21:30 PM3/9/10
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On Mar 9, 2:51 am, "Henry" <ohe...@razbanyisiatibenefuchi.com> wrote:


>
> Do these hold up well in the elements? My usage will be outdoors, 4 seasons.

They are nickel plated, but I have no idea how well the nickel plate
holds up. Without being nickel plated, they would fail in a very
short time.

Harbor Freight sells them. Look at item numbers 67488 and 98371.

Dan

sta...@prolynx.com

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Mar 9, 2010, 5:27:26 PM3/9/10
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On Mar 8, 7:25 pm, "Henry" <ohe...@razbanyisiatibenefuchi.com> wrote:
> Does anyone have a good source for some really tiny, but powerful magnets,
> preferably all weather type?

I've also bought from K&J. How tiny is tiny? The ones I bought were
about the size of a pencil lead and various lengths. Strong enough to
keep a small pusher rod in a hole when inverted. If you plan on
embedding them in anything ferrous, you need to plan on encasing them
in brass tubing to avoid "short-circuits". Or you can just buy
tooling magnets from MSC that have that already done. A couple of
layers of telescoping tubing from the hobby shop will do.

And what's all-weather? They're all nickel-plated, if you've got a
problem with that, encase them in epoxy(or brass).

Stan

Pete Keillor

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Mar 9, 2010, 5:49:44 PM3/9/10
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On Tue, 09 Mar 2010 10:07:42 -0600, RBnDFW <burkh...@gmail.com>
wrote:

I got a bunch of custom samarium cobalt magnets to my specs for
reasonable from Duramag. I designed and built a set of custom lab
stirrer hot plates to go to 215 deg C. Neodymium ain't good for that.
Most of these magnetic materials are brittle, by the way.

Pete Keillor

Bob Gentry

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Mar 9, 2010, 7:07:49 PM3/9/10
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Take a look at:

http://www.amazingmagnets.com/

Just a satisfied customer :)

Bob
rgentry at oz dot net

Henry

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Mar 9, 2010, 11:24:48 PM3/9/10
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"RBnDFW" <burkh...@gmail.com> wrote in message
news:hn5rnl$c3d$1...@news.eternal-september.org...


Thanks everyone for some great leads, I think I've found several promising
models (roughly the size of a dime). I'm glad I found this group since I
think it's always better to ask and learn from other's experiences.

I was almost turned away however, by some lunatic with a political agenda.
I'm glad I decided to ask my question anyway! Maybe you guys need to
moderate this group, I wonder how many others are turned away by that kind
of idiocy. Anyway, thanks again!

Larry Jaques

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Mar 10, 2010, 9:24:02 AM3/10/10
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On Mon, 8 Mar 2010 20:35:08 -0600, the infamous "Henry"
<ohe...@razbanyisiatibenefuchi.com> scrawled the following:

Remove "oscilloscope" and at the top, key in "rare earth magnet".

--
Stay centered by accepting whatever you are doing. This is the ultimate.
-- Chuang-tzu

Terry

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Mar 10, 2010, 10:58:32 AM3/10/10
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On Tue, 9 Mar 2010 22:24:48 -0600, "Henry"
<ohe...@razbanyisiatibenefuchi.com> wrote:

>
>Thanks everyone for some great leads, I think I've found several promising
>models (roughly the size of a dime). I'm glad I found this group since I
>think it's always better to ask and learn from other's experiences.
>
>I was almost turned away however, by some lunatic with a political agenda.
>I'm glad I decided to ask my question anyway! Maybe you guys need to
>moderate this group, I wonder how many others are turned away by that kind
>of idiocy. Anyway, thanks again!

One more source which has lots of other useful items:
http://www.leevalley.com/home/Search.aspx?c=2&action=n
Disc magnets down to 1/4" dia, rod magnets down to 1/8x1/8.
Their nail brushes are, hands down, the best hand cleaning devices
I've ever used.

Rare earth magnets include both samarium and neodymium types. My
experience has been that the shiny plating will eventually come off
and the darned things will corrode.

Terry

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