Hey Mart, Dude check out my comments to Sep in the "24 volt cap pulser" thread. There is a diagram I drew there with step by step instructions for the wiring of the 555 and opto (yes its H11d1) etc.

You shouldnt use 4001's for the bridge, I think they are only rated for 50v. 4007's or 5408's should do the trick. Pretty much any coil you can get to self oscillate, it doesnt have to be as big as Aarons. Mine is only a 100grams of #22 SWG X 3. Aaron has used a transistor to interupt flow instead of an SCR, and he has used a different cap on the 555 by the looks of it. You can try different cap values across the bridge, the lower the uF the higher the voltage will shoot up to.

Good luck