HP-71b ROM version

[rprosperi]

(10-06-2020 11:24 AM)KimH Wrote:  In my pile I have this

2630A00003 Plastic Back 1BBBB - it even has the new CPU - I was able to overclock it

New CPU was supposed to be from 2623A

Thanks Kim.

I would imagine that use of the new CPU began at the exact same time they revised the back to plastic, but I've never heard an exact date. 2623A is a bit earlier than all other observed units (by me and a few other 71 obsessed fans), but it fits in with everything with no conflicts so a nice new refinement. Do you know where info on the start date of 2623A comes from?