Love this video Frank! Very nicely presented, easy to follow. Sub titles much appreciated.
One slight issue is that sometimes the hand held block goes out of visible frame when you are talking about it.
What is the momentary switch used for?
If you have an oscilloscope (I am sure that you do!), putting various test points to show the width of the pulse would be fun too. Love the use of the light bulb though, really demonstrates the principles that you are are discussing.
Great job with the music bed also. Is this your original music? Nicely done.
Look forward to more video demos. They really bring things to life!