Tom

I downloaded the video (65 MB) & I have to say that for someone at my level of understanding it is extremely interesting. I would be interested to hear the opinions of some other more experienced pro's.

There does seem to be an awful lot of information tucked away inside these scope readings & I wonder how many years is takes to be able to interpret the traces.

I remember in my early days that the garage I served my apprenticeship with, had an "Allen Scope" or tester (whatever) it had an old cathode ray tube scope. Boy I wish I had paid more attention back then!