The VTU-5790A from Communications & Power Industries is a Traveling Wave Tube with Frequency 16 to 17 GHz, Peak Output Power 30 kW, Gain 46 dB, Collector Voltage 28 to 30 V, Cathode Voltage -38 to -35 kV. Tags: Coupled Cavity. More details for VTU-5790A can be seen below.