You can also give the YU1AW circuit a try where he came up with a 160-10 broadband input for a tetrode not named. It is a 120pf input cap to ground, a series 345nH coil, 250pf cap to ground and a series 308nH coil. I have the coil dimensions if needed. The terminating resistor is 50 Ohms. Disclaimer: I havent tried or analyzed it. Carl KM1H