High frequency push-pull amplifier has first transforming balancing transformer with low permeability ferrite core at symmetrical output, second transformer with high permeability core

摘要

The amplifier has a first transforming balancing transformer (5) with a ferrite core (6) of relatively low permeability connected to its symmetrical output (3,4) and a second balancing transformer (9) with a core (10) of relatively high permeability arranged after the first transformer. The ferrite core of the first transformer has a permeability between 80 and 150 and the second a permeability of about 800.