COAXIAL SWITCH THINGS TO KNOW BEFORE YOU BUY

It's LM108 and LM112 (internally compensated) and there is really no trick there. It's got 1nA enter bias and that is rather stable with temperature as in most bipolar opamps since β basically improves with temperature. Afterwards iterations like LT1008/LT1012 or OP97 pushed it down toRadio telescopes incorporate LNAs to seize weak electromagnetic