Please can you clarify something for me, because I don't have that strong power supply to offer right now, can offer 53V and up to 5A. can I configure bias voltage/current settings for gate or not, not to run amplifier like in production stage, so that I forget that story for now, until I buy stronger supply or not.
10V is max. voltage for MRF300AN/BN gate side, mosfets will get burned or not, anyway voltage regulator WS78M05A2218 is configure for output of 5V no matter how much offer on input side just for that purpose, or I don't understand you correctly.The bias setting voltage (anywhere from 0-10V) must also be available for the whole span. There is no way to guess how high or low this bias voltage needs to be so unless you have it ALL available you might never get it set.