The PTCM1028 from Communications & Power Industries is a RF Amplifier with Frequency 40 to 50 GHz, Supply Voltage 110 to 240 V, Operating Temperature 0 to 40 Degree C, Storage Temperature -10 to 50 Degree C. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for PTCM1028 can be seen below.