This thread reminded me of a small bipolar type TC I was going to build. The primary was going to be hidden below an insulated disc. The two secondarys, wound in opposite direction, where going to be mounted in a V formation above the disc on a short transparent rod. I thought the configuration would make an interestingly looking table top coil. Calculating k would have been tricky.
Robert (R. A.) Jones A1 Accounting, Inc., Fl 407 649 6400
Bob,
The "V" shape is something I had considered using also. I wonder if anyone ever built a TC in that shape?
Cheers, John Freau