Ferrite UU cores - where to get?

J

Joseph Casey

Guest
Greetings.
I need Qty 5 UU cores the type used in HT generators for CRTs. I have
had no luck finding them in catalogs of local distributors. I am in
Ireland so a European and preferably UK supplier is what I need.

The size is aproximately 33 mm inside; 55 mm outside giving a diameter
of ~12mm for each of the two core "legs".

I don't know the exact ferrite type except they are to make a 2KV step
up transformer. I succesfully used cores from old TVs before, but the
modern ones are all potted so I can't use them.

I would be very grateful if somebody could point me to a supplier.
Regards
Joseph Casey.
 
Hello Joseph,

Try these guys:

http://www.amidoncorp.com/

Regards, Joerg

http://www.analogconsultants.com
 
Joseph Casey wrote:
Greetings.
I need Qty 5 UU cores the type used in HT generators for CRTs. I have
had no luck finding them in catalogs of local distributors. I am in
Ireland so a European and preferably UK supplier is what I need.

The size is aproximately 33 mm inside; 55 mm outside giving a diameter
of ~12mm for each of the two core "legs".

I don't know the exact ferrite type except they are to make a 2KV step
up transformer. I succesfully used cores from old TVs before, but the
modern ones are all potted so I can't use them.

I would be very grateful if somebody could point me to a supplier.
Regards
Joseph Casey.

If you have some of those potted units with about the right sized
Click to expand...
cores, you might try baking them to destroy the potting compound. The
cores are quite heat resistant. The biggest risk is that the potting
will swell and crack the cores. But I have retrieved a few, this
way.An outdoor gas grill works pretty well, while letting the toxic
fumes blow away.
 
Hello Joseph,

In Europe you might try Kaschke (Germany):

http://www.kaschke.de/english/framesets/index_ferrite.html

Just got a postcard from Ireland, reminding me of a wonderful vacation
there. Very friendly people.

Regards, Joerg

http://www.analogconsultants.com
 
Joerg wrote:
Hello Joseph,

In Europe you might try Kaschke (Germany):

http://www.kaschke.de/english/framesets/index_ferrite.html

Just got a postcard from Ireland, reminding me of a wonderful vacation
there. Very friendly people.
Click to expand...
Unless you are British
--
ciao Ban
Bordighera, Italy
 
Thanks for suggestions and I will try those suppliers. I should clarify
that ferrites in general are easy enough to get. My difficulty is
finding UU cores of the type used in HT transformers. Listings of UU
cores I have found seem to be rectangular cross section whereas those
intended for HT have round section to facilitate the construction of the
HT winding. I suspect these there is very limited demand for these items
outside China or whereever our TVs are made these days. As a possible
alternative approach does anyone know a manufacturer building high
voltage equipment? I could beg some!
With thanks
JC
 
On Sat, 21 May 2005 07:21:59 +0000, Ban wrote:
Joerg wrote:
Hello Joseph,

In Europe you might try Kaschke (Germany):

http://www.kaschke.de/english/framesets/index_ferrite.html

Just got a postcard from Ireland, reminding me of a wonderful vacation
there. Very friendly people.

Unless you are British
Click to expand...
I wouldn't be so quick to judge. A few years ago, when I was still living
in Bloomington, Minnesota, USA, there was an Irish soccer team in town,
and the team captain, Seamus, it seems, had been hired to coach American
kids. I met him at the beer bar of a bowling alley where people went to
drink beer and shoot darts. The most notable thing I remember about these
Irish guys was the quip, "If you can't shoot darts when you're drunk, you
can't shoot darts."

But the point of my little tirade here is that ordinary Irish people
didn't impress me as hating British people, or anyone else, for that
matter. Seamus, upon some pressing, described to me his impressions of the
situation in Northern Ireland, which seems to be divided between those who
want to be a colony of England and those who want to be an independent
Republic. Probably not coincidentally, there was a very strong correlation
along religious lines. I kind of let it go at that point, because I try to
avoid relegious controversy, unless, of course, I'm plugging my own, the
Church of the Neodruid. ;-)

--
Cheers!
Rich
------
'"My mother," said the sweet young steno, "says there are some things a
girl should not do before twenty." "Your mother is right," said the
executive, "I don't like a large audience, either."'
 
Rich The Newsgroup Wacko wrote:
On Sat, 21 May 2005 07:21:59 +0000, Ban wrote:

Joerg wrote:

Hello Joseph,

In Europe you might try Kaschke (Germany):

http://www.kaschke.de/english/framesets/index_ferrite.html

Just got a postcard from Ireland, reminding me of a wonderful vacation
there. Very friendly people.

Unless you are British


I wouldn't be so quick to judge. A few years ago, when I was still living
in Bloomington, Minnesota, USA, there was an Irish soccer team in town,
and the team captain, Seamus, it seems, had been hired to coach American
kids. I met him at the beer bar of a bowling alley where people went to
drink beer and shoot darts. The most notable thing I remember about these
Irish guys was the quip, "If you can't shoot darts when you're drunk, you
can't shoot darts."

But the point of my little tirade here is that ordinary Irish people
didn't impress me as hating British people, or anyone else, for that
matter. Seamus, upon some pressing, described to me his impressions of the
situation in Northern Ireland, which seems to be divided between those who
want to be a colony of England and those who want to be an independent
Republic. Probably not coincidentally, there was a very strong correlation
along religious lines. I kind of let it go at that point, because I try to
avoid relegious controversy, unless, of course, I'm plugging my own, the
Church of the Neodruid. ;-)
Click to expand...

Being drunk is ancillary. The beer is for ballast. The optimal setup is
four pints inside and one in the left hand extended backwards at 45
degrees. BTW never drink and drive. You'll spill it.
 
On Sat, 21 May 2005 17:03:01 +0100, Joseph Casey wrote:
Rich The Newsgroup Wacko wrote:
....
Irish guys was the quip, "If you can't shoot darts when you're drunk,
you can't shoot darts."

Being drunk is ancillary. The beer is for ballast. The optimal setup is
four pints inside and one in the left hand extended backwards at 45
degrees. BTW never drink and drive. You'll spill it.
Click to expand...
"They" say, "gasoline and alcohol don't mix." Bullshit - they mix just
fine. It's just that it tastes _awful_.
--
Cheers!
Rich
------
"If all these sweet young things were laid end-to-end, I wouldn't be a
bit surprised."
-- Dorothy Parker
 
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