That guy has no idea what he is talking about. If you can listen to a minute of this without cringing, you are a stronger man than I. He is so far up his own butt that he gives the Buchardt engineers tips by throwing out random ideas such as "ditch the sand-cast resistors...I don't know..." Mortifying. You are well advised to ignore him completely.
Wow. Low bar. I suppose it's better than Beekhuyzen reading the manufacturers' claims as if he was imparting deep technological knowledge.