Hubbard coil

[pese]

other way....

[giantkiller]

other way....

Making 304 a secondary to the 307. Bifilar. The loose winding of 307 is used for creating a field and very low inductance? I pushes one direction along the shaft. Put alot of turns on the 304 and it starts to look very much like a stretched Tesla coil.
Replace the magnets with coils, stand it up and it looks like a Hubbard / Coler.

http://www.intalek.com/Index/Projects/Library/Library.htm

I am working on a rat shack 26# bifilar and a 22#pancake 512340-b single layer..

--giantkiller.

[sparks]

        Is Mark's tpu really torroidal.  Seems all these devices use some form of Tesla's coilcapacitor spreading the spark gap gain.

[giantkiller]

I see that. Your winding looks the 307 winding. The pulse goes around pushing the whole way.

--giantkiller.

[epiphany]

Four pairs of a Daniel Cook coil type configuration as a basis? There are 4 wires involved in his arrangement. Was this mentioned already? I'm too lazy to go back and look.