I'm a bit worried about his antenna concept---"The antenna will receive much better if it is transmitting at the same time,in phase with the incoming signal."
Unfortunately,we don't have the technology yet that can tell the difference between the two!
Maybe one day!
But then again,we can just use spraypaint!
With transistors,I don't really give a rodent's exhaust port about the Physics of them---that was the problem with a lot of the early Semiconductor training.
It wasted page after page on valency bonds & stuff like that,but barely scratched the surface on Applications.
He really scrapes the bottom of the barrel with some of the "misconceptions",setting up some which very few people believe,then proceeding to demolish them.
His description of how capacitors work is exactly what we were taught in 1959 at Perth Tech College!
Sorry,but I'm not that big on gurus!