About twenty years back, the best small linear is this RF amplifier, with famous BGY33. Today this Chip return, to make our life better. With only 100mW in the input, we have 20W in output. The voltage is 12 - 13.8 VDC 5A (6A max).
WARNING The IC BGY33 (Old Version, I don't know for new Version) is in Toxic Materials.
This product contains beryllium oxide. The product is entirely safe provided that the BeO disc is not damaged. All persons who handle, use or dispose of this product should be aware of its nature and of the necessary safety precautions. After use, dispose of as chemical or special waste according to the regulations applying at the location of the user. It must never be thrown out with the general or domestic waste.