This is my 1KW solid state amplifier. It was built from W6PQL boards by a friend of mine, Mike, W1FO. It uses a BLF188xr device that contains two transistors in one package. They are ran in push pull. You can find more about the parts at www.w6pql.com You can find the parts from him at the bottom left sidebar in “Parts I can supply”.
I have added another SS amplifier. This one uses the same boards from W6PQL but runs the MRF1K50H 1500 watt device. It is built inside of a Kenwood TL-922 case.