I have wo questions:

1. Is this possible?
2. Can anyone with the circuit already done and an extra flyback can try it?

Jesus

Ps
Also two 9v batteries can be used instead, changing the 100ohm with a 1k.

I will wait to see your results. It would be great if it works right!

Jesus

Neat stuff ! I love a little Jacob's Ladder.

Here's mine, using a 555 timer as the oscillator (so as to be able to vary frequency and duty cycle), switching a 2n3055, driving an ordinary 12v automotive ignition coil.
http://www.youtube.com/watch?v=VNL8QTS0sM0

I've got another one, using a more complicated circuit and a CRT flyback, that is audio modulated...it "sings" when plugged to an audio source. The amazing thing is that the sound begins to occur, with great fidelity but low volume, at voltages that are just short of making a visible spark.

The key to getting big voltages from your secondary is to switch your primary with as fast a rise/fall time as possible: that is, as square-edged pulse as you can manage. (Induced voltage is proportional to the rate of change of the inducing field).
For really _really_  high voltages, then, it follows that you need to avoid saturating your secondary cores with your driving pulses, and that these cores have to be low in inductance. Hence, the use of air core coils, which make it possible to take full advantage of VRSWR (voltage rise from standing wave resonance) in tuned, matched coils driven by square-edged pulses.
With flybacks and auto ignition coils, with their heavy inductances and saturable cores, it's hard to get over 50 kiloVolts; 20 or 30 kV is more like the usual operating range. The same circuit, driving tuned quarter-wave aircore resonators, can get close to ten times that voltage.