Topband: Receive loop observations

Herbert Schoenbohm herbs at vitelcom.net
Sat Apr 2 10:41:42 EDT 2016


Just a question about loop matching ferrite coils......are these 
available anywhere pre-wound anywhere.  I wind the easy ones to match 
Beverages but the 50 turns is going to be a chore.


Herb, KV4FZ

On 4/2/2016 8:48 AM, James Rodenkirch wrote:
> Thank you to all for the replies/comments/suggestions --- I am all over finding a #61 or #43 material core for a xfmr....71.5/72 de Jim R. K9JWV
>
> ________________________________________
> From: Topband <topband-bounces at contesting.com> on behalf of Jim Brown <jim at audiosystemsgroup.com>
> Sent: Friday, April 1, 2016 2:55 PM
> To: topband at contesting.com
> Subject: Re: Topband: Receive loop observations
>
> On Fri,4/1/2016 1:36 PM, James Rodenkirch wrote:
>> need to find a Fair-rite 61 core
> N6RK notes that Fair-Rite #43 will work fine, with slightly increased
> loss. Mu is higher, so you will likely need fewer turns to get 100 uH.
> #43 is much easier to find.
>
> 73, Jim K9YC
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