[RFI] 2.4" OD #31 toroids

[Pete Smith N4ZR]

Thanks, Don - that's the right part, all right, but so far Amidon, Arrow 
and Mouser all don't recognize the number.  I'll keep looking.

73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000


On 1/30/2012 8:38 AM, Don Nelson wrote:
> On 1/30/2012 6:24 AM, Pete Smith N4ZR wrote:
>> Does anyone have a source for these?  I can't even find them on the
>> Fair-Rite web site any more.  I want to build a couple of super-good
>> common-mode chokes of the ON4UN/K9YC-recommended split type with ground
>> in between, wound with RG-59, and assume these cores will work fine.
>> Also, since this is a receiving application, I assume I can get by with
>> a single core to keep the cost and bulk down.  Wrong?
>>
>> 73, Pete N4ZR
>> The World Contest Station Database, updated daily at 
>> www.conteststations.com
>> The Reverse Beacon Network at http://reversebeacon.net, blog at
>> reversebeacon.blogspot.com,
>> spots at telnet.reversebeacon.net, port 7000 and
>> arcluster.reversebeacon.net, port 7000
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>>
> Pete,
>
> The last toroids I ordered were material type 31. These are made by 
> Fair-rite with a part number 2831803802. The web page at Fair-rite is 
> http://www.fair-rite.com/cgibin/catalog.pgm?THEONEPART=2631803802&SEARCHAGAIN=Y#select:onepart. 
>
>
> Fair-rite does not use the T240 designation because that may be a copy 
> righted designation by Amadon.
>
> I ordered these toroids from Arrow Electronics. At the time the cost 
> was less than $7 each.
>
> Don
>
>