The 8100-020 from ETS-Lindgren is a RF Amplifier with Frequency 1 to 2 GHz, Gain Flatness ±7.5 dB, Harmonics -10 dBc, AC Voltage 200 to 240 V. Tags: Benchtop / Rackmount, Power Amplifier, Travelling Wave Tube Amplifier. More details for 8100-020 can be seen below.