New-to-me HP-71B

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(11-25-2019 03:47 AM)Sylvain Cote Wrote:  Serial number 2401A00190 -> VER$ -> HP71:1BBBB

Wow. This is very interesting to me. For whatever reason, I thought that the HP-71B was announced on 1 February 1984 (page 89 in A Guide to HP Handheld Calculators and Computers). To me, that means HP-71Bs made then would have ROM 1AAAA. I always believed that ROM 1BBBB came in September 1984, and went on until 2CCCC arrived in March 1985. Am I mistaken with my dates? It certainly appears so with reports of serial numbers indicating HP-71Bs with ROM 1BBBB in week 1 of 1984.

Since I'm mistaken, does anyone know the accurate timeline?

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