Solid state info

Hi all

Every body know the flyback driver using 2 2n3055:
Is it possible to use a variation of this circuit to drive a tesla ,
using Mosfet in place of transistor ( or something like that ) ?
All the circuits I saw use a variable square wave generator to drive the
mosfet  leading to lost,  heat, harmonic and need for tuning the
oscillator. i know mosfet gate are really sensitive but it's could be

If some of you ever try this approach or know some thing about that I'm

Luc Benard(montreal)

P.S. Last weekend I mist the List, thanks to every body who fix the list
especially to Chip.