For a long time I was going to share with you the materials on assembling a transistor amplifier with unipolar power, assembled in retro-topology, which is still of interest to some radio amateurs. At the forum Diyaudio this ULF... Electronics Projects, 2N3773 2SC5200 Amplifier Circuit 150W "audio amplifier circuits, transistor amplifier, " Date 2019/08/04