The VTU-6295M1A from Communications & Power Industries is a Traveling Wave Tube with Frequency 13.75 to 14.5 GHz, Power 400 W, Gain 50 dB, Collector Voltage 48 to 52 KV (DC), Cathode Current 310 mA(DC). Tags: Helix. More details for VTU-6295M1A can be seen below.