I painstakingly wound a trifilar coil last night, making sure it is a perfect as possible (using the "paper between layers" method ) to experiment with using a strand as a recovery coil. Until now I have only used bifilar.

Though as I was wrapping it, I couldn't figure out the purpose for it

We're only using the Fly back, so what is the point of the bridge rectifier?

and wouldn't it half the strength of the coil since there are only half as many turns for the same cubic area as a bifilar coil.

Any thoughts