New-to-me HP-71B

[rprosperi]

Since I've been collecting SN/Version info that folks have posted here, these are the units bordering the ROM version changes:

2401A00147 1AAAA
2401A00190 1BBBB
...
2713A00041 1BBBB
2718A00112 2CCCC
...
2745A00015 2CCCC
2810A00038 2CDCC


Another unit listed on eBay was reported to have Ver. 1AAAA with SN 2405A00331, but this is suspected of being a frankencalc as at least 4 other units prior to this were reported with Ver. 1BBBB, including one only 27 units prior from the same week.

I don't recall the exact purchase date, but I bought my 71B well before mid-84, as I was living in SoCal at the time, attending weekly PPC meetings; we knew immediately when EduCalc had stock, then just a quick drive to go get it.


For the 71B HP-IL Module, the analogous reported changeover version/dates are:

1A 8531
1B 8603

If anyone has a unit that narrows these gaps and thus better clarifies the data of the ROM version change, PLEASE POST YOUR SN/Version.