These guys are distributors for HENRY RF Power Amplifiers. The very best NB RF power amps in the world.

Offers a complete line of RF Amplifiers for NMR Applications in both low and high power versions from KHz to MHz. All amplifiers are broad banded.

...you will see many different rf amplifiers in many different pieces of equipment. The particular circuit configuration used for an rf amplifier...

Small Signal RF Amplifier Design Transistor Biasing - Design Using Y Parameters - Design Using S Parameters RF Power Amplifiers RF Power...

How broadband amplifiers are rated. The power rating. High-power rf amplifiers are usually rated for cw (continuous-wave) operation.