The VTX-5783E from Communications & Power Industries is a Traveling Wave Tube with Frequency 8.6 to 9.5 GHz, Peak Output Power 40 kW, Gain 48 dB, Collector Voltage 19 to 22 kV, Cathode Voltage -34 to -31 kV. Tags: Coupled Cavity. More details for VTX-5783E can be seen below.