Here is my effort at a 12 stand coil. In this test I have it wired as 6 strands in series and then the two in parallel.
He suggests a variable speed drive to find the sweet spot. Lacking that and always used to using the RV as test bed I carried on as usual. The RV is very precise as a reverse prony brake, 10 watts out and you look over and the input has gone up 10 watts (or more)
I had tried this new coil the other day with an 8 inch 8 magnet rotor and nada. Being limited to 1760 RPM has it’s limitations.
However, using my 24 magnet Phil Woods rotor I get a more pleasant outcome. I am only getting 5 watts output but the input went down 5 watts! Running at speed with no load and the input draw was 70 watts. Rectifying to DC and with a 20 ohm load I get 5 watts output and a 65 watt input.
A work in progress at this point but exciting to pursue this promising concept.
Thanks Dave
Ron
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