Typically this kind of amplifiers have a lot of inherent distortion because they work in the linear part of their characteristic a very small amount of the time (only at peak moments). Usually the output will be very distorted but applying an LC filter restores the signal perfectly and amplifies it. This is an RF power amplifier because it amplifies both current and voltage. The output power is 2W the transistor being 2N3553. The input power is around 200mW.
