Permabanned
Generally speaking such power levels are illegal, but so is going over the speed limit, yet most all cars for sale can go WELL over most limits. I think if you can think of a good enough reason many licensing authorities will grant you a temporary permit for high power testing, in the UK a "Notice of Variation". The Yanks and Italians don't worry about annoying stuff like that though 
Henry Radio used to do a valved 70cms. amplifier that whacked out near 2kW or so, there was one for sale in the UK on Ham Radio Deals last year. The valves like many other big 'uns are hard to find new though and about £1500 each.
I've got a Henry amp used as a laminate dryer that would put out over 5kW on 27 / 28 MHz if I put an aerial on it, not that I'd dream of such a stunt of course. I built a 6600 volts @ 2 Amps single phase DC anode supply for it as the OE one was three phase. I've got another Henry on the 14 MHz industrial band, again 5 or 6kW, it's tempting to put a dipole on it I have to admit
The initial rectifier board I built was on a paper based laminate, because it was cheap, like me, and it didn't like over 6kV and exploded, I think I have photos somewhere, sounded like a gunshot, I remember 'er indoors was sad to find me alive and uninjured, albeit in a room full of acrid smoke.
Would also make a good electric chair
Henry Radio used to do a valved 70cms. amplifier that whacked out near 2kW or so, there was one for sale in the UK on Ham Radio Deals last year. The valves like many other big 'uns are hard to find new though and about £1500 each.
I've got a Henry amp used as a laminate dryer that would put out over 5kW on 27 / 28 MHz if I put an aerial on it, not that I'd dream of such a stunt of course. I built a 6600 volts @ 2 Amps single phase DC anode supply for it as the OE one was three phase. I've got another Henry on the 14 MHz industrial band, again 5 or 6kW, it's tempting to put a dipole on it I have to admit
The initial rectifier board I built was on a paper based laminate, because it was cheap, like me, and it didn't like over 6kV and exploded, I think I have photos somewhere, sounded like a gunshot, I remember 'er indoors was sad to find me alive and uninjured, albeit in a room full of acrid smoke.
Would also make a good electric chair
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