I am the 2nd speaker. The class is started with a 15 minute introduction by Al Klase from the NJARC. Then, I take over the class for about 2 hours, followed by a 3rd speaker talking about the historical development of the CRT for scopes.Which speaker were you? I thought the main speaker (I have only watched about half so far) was a Tek engineering (and I think you said you did not work for Tek).
I'm not sure where you got the impression that I didn't work for Tek. In fact, I do work for Tek, since about 2006, after being a "customer" of Tek for 25+ years.
I'm sure you'll find that the videos on MY youtube channel have much better audio quality.