The 9400/94600-G40H80 from Quarterwave Corporation is a RF Amplifier with Frequency 4 to 8 GHz, Gain 40 dB, Peak Power 0.04 kW, Spurious 50 to 55 dBc, AC Voltage 120 to 240 V. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for 9400/94600-G40H80 can be seen below.