-> RJT> WC> I just took a TV flyback and made an external 8 turn
winding center
-> RJT> WC> tapped and drove it with a push - pull oscillator made
with hefty
-> RJT> WC> TO-3 transistors.
-> RJT> WC> Ran at about 20KHz and drew 10 - 11 amps at 12 volts.

-> RJT>That just seems awfully inefficient,  though...

->  How can you say that without having any other Data??
-> Like the Power Output for that 120 or so Watt Input.

Never had the ability to measure current at 25 KV so no idea how
efficient it was.

The spark however was pretty awesome.

I'd considered getting some HV diodes and making a voltage ladder
to multiply the voltage times 10 however was dissuaded when
I got the back EMP from the primary when disconnecting a lead.

I really should have enclosed the whole thing in plexiglass.
--- Platinum Xpress/Win/WINServer v3.0pr5