The VTC-6369D5 from Communications & Power Industries is a Traveling Wave Tube with Frequency 5.850 to 6.725 GHz, Power 2.25 kW, Gain 44 dB, Collector Voltage 63% of Ew to 67% of Ew kV (DC). Tags: Helix. More details for VTC-6369D5 can be seen below.