Hello again Kelvin, I could name you 25 stations in the US and in other
countries too, that are operating with over 15 KW. Many of the really
high-power stations are using custom built amps using the 4CX15000A(8281)
ceramic tetrodes. I am told that these amps cost $32,000 in the auto-tune
version, and $24,000 in manual tune.
73
Alan/KD7GC