The VTX-6282F3 from Communications & Power Industries is a Traveling Wave Tube with Frequency 8 to 12.4 GHz, Power 200 W, Gain 35 dB, Collector Voltage 4 to 5 kV (DC), Cathode Current 350 mA(DC). Tags: Helix. More details for VTX-6282F3 can be seen below.