Another suggestion is to purchase a full box of cores.I few years ago I
purchased 65 pcs of the 2.4" cores from Arrow. About 12 arrived cracked in
shipping. Of course Arrow made good on the damaged cores.In a later purchase I
ordered a full box of 100 pcs, again from Arrow, and they arrived in great
condition. 73,Gary K9GS
-------- Original message --------From: Jim Brown <jim@audiosystemsgroup.com>
Date: 9/28/20 11:40 PM (GMT-06:00) To: rfi@contesting.com Subject: Re: [RFI]
List of ferrite sources and prices Thanks, Gary.Don't forget to include
shipping costs when comparing quotations. I often make small purchases at
Arrow, because they offer free overnight shipping for a $50 order for anything
they have in stock, and they stock a lot of the Fair-Rite parts we are likely
to need.73, Jim K9YCOn 9/28/2020 9:15 PM, Gary Johnson wrote:> Here’s a price
and stock survey on ferrite toroids and clamp-ons for ham RFI applications. I
post this occasionally. Some of the entries were updated a couple months ago,
others are older. Stock status fluctuates... Anyway, this will give you a
general comparison of prices and plenty of alternate sources to check. And
you’ll quickly see why Palomar Engineers is the last place you want to go when
buying ferrite.> > Gary NA6O> ————————————-> > Showing only suppliers with
websites that list inventory and allow online ordering. When ordering 2.4-inch
toroids, order in multiples of 10, then most suppliers will pack them in
original factory-molded foam sheets.> > Call these companies for quotes. Prices
in larger quantities often beat anything listed here.>
http://www.dextermag.com/> http://www.lodestonepacific.com/> >
************************************************************> Toroid, 2.4" (61
mm) OD, #31, Fair-Rite 2631803802>
************************************************************>
http://www.kregercomponents.com/fair-rite-products/2631803802> 7-13-20 out of
stock, min order $100> 1: $6.59> 25: $5.03> 50: $4.88> 100: $4.31> >
https://www.arrow.com/en/products/2631803802/fair-rite-products> 7-13-20
unavailable> 100: $4.89> > https://www.mouser.com> 6-13-20 in stock> 1:
$4.89> 100: $4.32> 200: $4.12> > https://proaudioeng.com/fair-rite-ferrites/>
6-13-20 in stock> 1: $6.50> 4: $6.25> 10: $6.00> > http://www.newark.com/>
7-13-20 in stock> 1: $5.55> 10: $quote> 25: $quote> 50: $quote> 100:
$quote> > http://www.kf7p.com/KF7P/Ferrite_chokes.html> 7-13-20 Watch for
occasional sales> 1: $8.95> 10: $7.85> >
http://www.kitsandparts.com/toroids.php> 9-20-17 in stock, shipping: flat rate
box, about $10> 1: $10.00> 10: $8.50> >
http://palomar-engineers.com/ferrite-products/ferrite-cores> 9-20-17> 1:
10.00> 10: $9.00> 100: $7.50> > > >
************************************************************> "Biggest clamp
on" Fair-Rite #31 p/n 0431177081> Page 83 of pdf catalog #17. 1" bore, 1.7"
long> Equivalent to about 3 toroids.>
************************************************************>
https://proaudioeng.com/fair-rite-ferrites/> 12-4-19 in stock> 1: $12.80> 4:
$11.56> 10: $10.41> >
http://www.kregercomponents.com/fair-rite-products/0431177081> 12-4-19 in
stock, min order $100> 1: $13.10> 25: $10.05> 50: $9.75> 100: $8.75> >
http://www.kf7p.com/KF7P/Ferrite_chokes.html> 12-4-19 (sometime he has sales)>
1: $14.95> 10: #13.05> >
https://www.arrow.com/en/products/0431177081/fair-rite-products> 12-4-19 out of
stock> 1: $13.26> > http://www.mouser.com ; 623-0431177081> 12-4-19 in stock>
1: $14.31> 10: $10.06> 50: $9.76> 100: $8.46> > http://www.newark.com/>
12-4-19 in stock> 1: $17.49> 10: $13.53> 25: $12.93> 50: $12.33> 100:
$11.24> > > ************************************************************>
Extra-Large Toroid, Fair-Rite #31 2631814002> 4-inch OD>
************************************************************>
https://www.arrow.com/en/products/2631814002/fair-rite-products> 7-13-20 out of
stock> 1: $> 10: $> > https://proaudioeng.com/fair-rite-ferrites/> 6-13-20 in
stock> 1: $20.90> 4: $18.90> 10: $18.00> > http://www.mouser.com ;
623-2631814002> 7-13-20 in stock> 1: $20.28> 10: $16.83> 50: $16.19> >
http://www.newark.com/ ; 01P1090> 7-13-20 small tock> 1: $18.69> 5: $18.18>
10: $17.67> > http://www.kf7p.com/KF7P/Ferrite_chokes.html> 12-4-19 Watch for
occasional sales> 1: $19.95> >
************************************************************> Toroid, 2.4" (61
mm) OD, #43, Fair-Rite 2643803802>
************************************************************>
https://www.arrow.com/en/products/2643803802/fair-rite-products> 12-4-19 out of
stock> 100: $2.42> > http://www.mouser.com> 12-4-19 out of stock> 1: $5.75>
10: $4.07> 50: $3.95> 100: $3.33> > http://www.newark.com/> 12-4-19, in
stock> 1: $6.89> 10: $4.52> 25: $4.46> 50: $4.40> 100: $3.63> >
http://www.kf7p.com/KF7P/Ferrite_chokes.html> 9-20-17 Watch for occasional
sales> 1: $5.50> >
http://www.kregercomponents.com/fair-rite-products/2643803802> 12-4-19 in stock
min order $100> 1: $4.00> 50: $3.45> >
http://www.kitsandparts.com/toroids.php> 9-20-17 in stock, shipping: flat rate
box, about $10> 1: $8.00> 10: $7.50> > http://www.amidoncorp.com/ft-240-43/>
9-20-17> 1: $9.00> >
http://palomar-engineers.com/ferrite-products/ferrite-cores> 9-20-17> 1:
$10.00> 10: $9.00> 100: $7.50> >
https://www.alliedelec.com/view/search?keyword=2643803802> 12-4-19 out of
stock> 1: $10.08> 10: $9.23> >
************************************************************> Toroid, 1.4" (36
mm) OD, #43, Fair-Rite 2643802702> Great for small wires like wall-warts>
************************************************************>
http://www.mouser.com> 12-4-19 in stock> 1: $1.45> 10: $1.12> 50: $1.06> >
https://www.arrow.com/en/products/2643802702/fair-rite-products> 12-4-19 small
stock> 1: $1.33> 10: $1.09> >
************************************************************> Toroid, 1.1" (29
mm) OD, #31, Fair-Rite 2631801202> Great for small wires like wall-warts>
************************************************************>
http://www.mouser.com> 7-4-20 in stock> 1: $1.19> 50: $1.12> 100: $0.945> >
https://www.arrow.com/en/products/2631801202/fair-rite-products> 12-4-19 in
stock> 1: $1.14> 10: $1.13> 25: $1.12> > >
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