The 7400TP4G8 from AR RF/Microwave Instrumentation is a RF Amplifier with Frequency 4 to 8 GHz, Gain 69 dB, Gain Flatness ±10 dB, Harmonics 15 dBc, AC Voltage 360 to 435 V. Tags: Travelling Wave Tube Amplifier. More details for 7400TP4G8 can be seen below.