The TWT4G8G-250 from AMETEK CTS is a RF Amplifier with Frequency 4.0 to 8.0 GHz, Gain 54 dB, Small Signal Gain 54 dB, Output Power 53.98 to 54.77 dBm, Output Power 250 to 300 W (Sat. Power). Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for TWT4G8G-250 can be seen below.