Fun fact: Airborne Jammers like these might be one of the last places of state of the art technology where the good old vacuum tube is still better than semicon

Fun fact: Airborne Jammers like these might be one of the last places of state of the art technology where the good old vacuum tube is still better than semiconductors. For large power amplifiers, especially with power and power-density considerations, nothing beats a travelling wave tube. And on the ground with "unlimited" power and cooling? Well, there's always the Klystron...