The VTC-5765D from Communications & Power Industries is a Traveling Wave Tube with Frequency 5.25 to 5.75 GHz, Peak Output Power 100 kW, Gain 40 dB, Collector Voltage 25 to 28 kV, Cathode Voltage -45 to -43 kV. Tags: Coupled Cavity. More details for VTC-5765D can be seen below.