Here are the AES Six Pac Audio Amplifiers. Both amplifiers are here for repairs and modifications. In this video, I will reverse engineer these amplifiers and provide a schematic for us to look at. Power, frequency response, and distortion specs for these Six Pac amplifiers will also be provided. We will locate a design issue, then I will show you the solution, and how to fix it. Learn about crossover distortion and vacuum tube bias. Lots of tips and tricks to amplifier design revealed in this video. See the "Carlson Super Probe" in action, and much more! To learn things about electronics that you won't learn anywhere else, go to my Patreon page. Click this link: https://www.patreon.com/MrCarlsonsLab