Peter H. wrote:

Dean was in charge of designing the 453A, the best
scope Tek ever made (I have 3 of them).


Then you've never owned a 485, my personal favorite.


The 453 was a favorite of IBM's service organization, but not of other
manufacturers, and probably not of many engineers.

The 485 was the best analog scope ever made by anyone.

Alright. Peter and I agree on something.