Re: HP-42S display versions Message #2 Posted by Karl Schneider on 23 Oct 2002, 2:03 a.m., in response to message #1 by Don Davis
Don --
I can narrow it down for you a little. My eBay-purchased 42S is a "flat bezel" with serial #2939S33496 (late 1989).
Several of my co-workers have employer-provided "curved bezel" units with serial #'s from late 1990.
Those units exhibit the minor permutation/combination bug mentioned in MoHPC. My older unit does not. I believe that the ROM revision coincided with the changes to the face.
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