What's the highest V you could get a slayer exciter to?

What's the highest V you could get a slayer exciter to? One on YouTube went up to 100v. What type of transistor to?

No had idead what that was. do now.
a Tesla coil using a transistor.

you need to find out a transistor for it
that has high volts and amps. big heat sink to.
and see how big a secondery coil you can wind.

some years ago I found a lot of web site for this.
I will call back if I find them.

Be carfull !!!!!!!!!!!!