And other examples of replacing a 6AK8 tube ( triple diode/triode tube ), with a solid state replacement
in HF Rx receiver using HV MosFets.
;wap2
Clearly, the simple substitution with HV Fets in radio Rx circuits
will Not be the same as specific circuits in a precision Tek measurement instrument....
am simply providing "food for thought" ideas for intrepid experimenter; use at your own risk !!