The VTC-5765C from Communications & Power Industries is a Traveling Wave Tube with Frequency 5.25 to 5.75 GHz, Peak Output Power 75 kW, Gain 47 dB, Collector Voltage 25 to 28 kV, Cathode Voltage -39 to -37 kV. Tags: Coupled Cavity. More details for VTC-5765C can be seen below.