I have a power supply capable of 2500V at 800 ma. Thats enough for a kw linear. I have a box of 4-65As and a box of 4-125As and am thinking that 4 of the latter with the grids tied together in GG would match the power supply prety well. Anyone have any OTHER suggestions for the tube(s) -- Jim Isbell W5JAI UV #257 CAL 27 #221