The VZS/C-6963J2 from Communications & Power Industries is a RF Amplifier with Frequency 2 to 8 GHz, Gain 54 to 56 dB, Small Signal Gain 12 dB pk-pk, Phase Noise 3 dB, AC Voltage 220 to 240 VAC single phase ±10%, 47 to 63 Hz. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for VZS/C-6963J2 can be seen below.