On Thu, 23 Aug 2007 20:36:13 -0400, "Bill Ogden"
wrote:

Where is a reasonable source for a small number of 2.4 inch #31 toroids?

Various catalogs list #43 in this size, but I cannot find #31.

The 160/80m choke described in K9YC's paper sounds good. I expect getting 7
turns of RG213 or "buryflex" through these toroids might be an interesting
exercise.

Bill - W2WO

I've purchased mine from Amidon.

http://www.amidoncorp.com/

Danny, K6MHE