Pretty simple Jim, I'm old ;o)
I probably have three copies of this tutorial printed in various locations, but
never where I need it when I have time to search.
On the other hand, I do recall the size and material of the item in question.
Usually that's an easy way to search for surplus parts,
> -Original Message-
> From: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] On Behalf Of Jim Brown
> Sent: Wednesday, April 08, 2009 8:57 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] OT: J and -31 mix toroids
>
> On
On Tue, 7 Apr 2009 14:01:30 -0700, Mike Scott wrote:
Very good advice, Mike. Other good distributors are listed in my tutorial and
on the Fair-Rite website. The ham distributors whose names you recognize are
the WORST choices -- very expensive, very high markups. I'm hoping that WX0B
(Array Sol
Mike and all,
Loadstone quoted $5.4506 each for quantities of 1 to 249 pieces. They do have a
minimum order of $50. Very nice on the phone.
I'm ordering for our Tennessee Contest Group, so we will exceed the minimum by
a little bit ;o)
This should kill the last of the garbage on my 160M anten
On Tue, 7 Apr 2009 09:23:15 -0700 (PDT), Julius Fazekas n2wn wrote:
> I see it's a pretty common question once I found the part number...
I don't get it. I went to a LOT of trouble to write that tutorial, then
post a link to it in response to questions like this, tell people where
to look, and
f the tongue you may
never get over." Ben Franklin
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
Sent: Wednesday, April 08, 2009 9:50 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: J and -31 mix t
On Tue, 7 Apr 2009 05:37:40 -0700 (PDT), Julius Fazekas n2wn wrote:
>Jim, ask for a quote from whom? WX0B or Fair-Rite?
For small and medium quantities, WX0B. For large quantity ($500-$1,000
min order, buy only in box quantities), Fair-Rite or other
distributions listed on their website and in
>Fair-Rite has a quite high minimum order value, several hundred dollars as
>I recall. OTOH Mouser stocks most of the 31 material you would likely find
>useful including the 2.4 inch toroids and the monster snap-on. The
Fair->Rite web site has all the technical info you will need to
cross-referen
arty: Sunday, 6 Sept 2009
http://www.tnqp.org/
Elecraft K2/100 #4455
Elecraft K3/100 #366
--- On Tue, 4/7/09, Svend Spanget wrote:
> From: Svend Spanget
> Subject: Re: [Elecraft] OT: J and -31 mix toroids
> To: "Julius Fazekas n2wn"
> Cc: elecraft@mai
nessee QSO Party: Sunday, 6 Sept 2009
http://www.tnqp.org/
Elecraft K2/100 #4455
Elecraft K3/100 #366
--- On Tue, 4/7/09, Svend Spanget wrote:
> From: Svend Spanget
> Subject: Re: [Elecraft] OT: J and -31 mix toroids
> To: "Julius Fazekas n2wn"
> Cc: elecraft@mailman.
w.tnqp.org/
Elecraft K2/100 #4455
Elecraft K3/100 #366
--- On Tue, 4/7/09, Svend Spanget wrote:
> From: Svend Spanget
> Subject: Re: [Elecraft] OT: J and -31 mix toroids
> To: "Julius Fazekas n2wn"
> Cc: elecraft@mailman.qth.net
> Date: Tuesday, April 7, 2009, 9:24 AM
>
Julius wrote:
> Jim, ask for a quote from whom? WX0B or Fair-Rite?
Perhaps http://www.arraysolutions.com/ [http://www.arraysolutions.com/] ?
73, Svend OZ7UV
TDC Bredbånd for 0 kr.
- Spar 695 kr. Se http://tdc.dk/freemailtilbud/
Den
Thanks to all for the replies... Didn't quite get an answer to the -J versus
-31, but still useful.
Jim, ask for a quote from whom? WX0B or Fair-Rite?
Cheers,
Julius
On Mon, 06 Apr 2009 17:03:50 -0400, Jack Smith wrote:
>You might wish to experiment with Steward mix 35 or 40 toroids. Mix 35
On Mon, 06 Apr 2009 17:03:50 -0400, Jack Smith wrote:
>You might wish to experiment with Steward mix 35 or 40 toroids. Mix 35
>has a relative permeability of 5000 and mix 40 is 10,000. Fair-Rite's 31
>material has a relative permeability of 1500.
Relative permeabilility varies with frequency --
Subject: Re: [Elecraft] OT: J and -31 mix toroids
> You might wish to experiment with Steward mix 35 or 40 toroids. Mix 35
> has a relative permeability of 5000 and mix 40 is 10,000. Fair-Rite's 31
> material has a relative permeability of 1500.
>
> Digikey carries sev
I should also mention that Mouser carries some Fair-Rite mix 31 cores.
They are in the catalog at Fair-Rite --
http://www.mouser.com/catalog/637/917.pdf is the current catalog page.
Jack K8ZOA
Julius Fazekas n2wn wrote:
> I know there are several folks here who could answer this questions.
>
>
You might wish to experiment with Steward mix 35 or 40 toroids. Mix 35
has a relative permeability of 5000 and mix 40 is 10,000. Fair-Rite's 31
material has a relative permeability of 1500.
Digikey carries several sizes of toroid cores in mix 35 and 40 at
moderate price. Search DigiKey's web si
I know there are several folks here who could answer this questions.
I'm looking to improve my current chokes for my 160 and 80 Tx antennas. I was
planning on going with -43 material, but after reading thought -J and/or -31
mixes might be a better solution.
The 31 mix seems a bit more difficu
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