The VZL-6943J2 from Communications & Power Industries is a RF Amplifier with Frequency 1 to 2.5 GHz, Gain 54 to 56 dB, Small Signal Gain 18 dB pk-pk, Harmonics -3 dBc, Phase Noise -60 W. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for VZL-6943J2 can be seen below.