hey guys, I'm super new here! and i didn't expect to be posting so soon
but I'm thinking of a solution.
Inside of a crt television you will find just what i think you need. It's called a flyback transformer. The hallmark of the flyback transformer, is it's insane V/turn ratio and turn to turn ratio. You can easily achieve 5-10 volts per turn, and with an estimated 1:100 pri:sec ratio.... Well, lets just say thee lil guys are nice. They're epoxy encapsulated, they are internally rectified and they will happily output an excess of 45kv! On top of that they weigh less then a pound and can output 10's to 100's of miliamps. But the best thing of all! Is they are as common as the transistors/mosfets/igbts you need to drive them!!! you will find at least one suitable mosfet or IGBT very close to the transformer on the PCB inside the television.
Now the best results come from driving them with a (primary resonant or ZVS)fullbridge, And the frequency doesn't really mean much(at least 10khz). The important factor is the duty cycle you drive them at. The most simple and common circuit used for them is the mazzilli ciruit *see attached*. Which operates very close to 50% duty cycle.
This circuit is so simple you can build and have a functional forward converter in less then 1 hour.
Once well optimized these flyback circuit drivers can probably output around 500 watts, so be careful they can be lethal.
If your interested, here is some more information on some of the various ways to drive a flyback. (or any ferrite cored transformer)
http://uzzors2k.4hv.org/index.php?page= ... merdrivers
i hope this can help.