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.

The HP 1725A was a second to the 485 at my former employer.

The mainframe manufacturing test cells got 485s; the service organization got
1725As.

After both had been deleted, we went to 2465As.