I'm not sure what kind of material you made that from, but 3 or even 4 turns is OK for the low-Z winding on the #73 solid 2-hole cores we were talking about earlier. It seemed to work well for you. :-)
Sometimes, we have to cascade two transformers to get to the Z ratio we want. 73, Mike www.w0btu.com On Sat, Aug 24, 2013 at 6:38 PM, Charlie Cunningham < [email protected]> wrote: > As I recall, when I wound the tranformer for my 40' X 10' KAZ terminated > loop, I wound it 3:13 T because I was trying to match from 50 ohms up to > around 950 ohms. The core I used was binocular that I cobbled together by > taping together two Fair-Rite tubular cores, side-by-side. I used wire-wrap > wire. Worked really well, and surely helped me on 160 and 80m, but it was > a > great receive antenna for 40 and 30m as well. > _________________ Topband Reflector
