New-to-me HP-71B

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(11-25-2019 01:26 PM)brierand Wrote:  According to http://www.jeffcalc.hp41.eu/emu71/bug71.html:

HP71:1AAAA Jul, 25, 1983 12:10pm
HP71:1BBBB Sep, 2, 1983 12:11pm
HP71:2CCCC Mar, 5, 1985 12:10pm
HP71:2CDCC Mar, 5, 1985 12:10pm

The author explains on that page why the last two datestamps are the same.

Thanks very much for this. It does not make sense to me that, if HP switched to the 1BBBB ROM in September 1983, then announced the HP-71B in February 1984, and they were not yet available for purchase until later (the HP Journal in July 1984 was about the HP-71B, so I assume it was not available for purchase until mid-1984), why would anyone have received an HP-71B with ROM 1AAAA? I would assume that HP would never have let any of those out at all.

I'm quite confused!

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