The VZK-2790J1 from Communications & Power Industries is a RF Amplifier with Frequency 18 to 26.5 GHz, Gain 50 to 53 dB, Small Signal Gain 5 dB pk-pk, Phase Noise 10 dB, AC Voltage Single phase, 100 to 240 VAC ± 10%, 47 to 63 Hz. Tags: Travelling Wave Tube Amplifier. More details for VZK-2790J1 can be seen below.