HP-50G case puzzle

[grsbanks]

(12-01-2018 08:30 PM)rprosperi Wrote:  Keep in mind the 50g was sold 2006-2015, and the initial digit of the SN is the last digit of the year, so that puts your units into the following order, oldest to newest:

CNA7330xxxx, NO (2007)
CNA9420xxxx, NO (2009)
CNA2240xxx, YES (2012)
CNA2290xxx, YES (2012)
CNA4471xxx, YES (2014)
CNA4471xxx, YES (2014)

which is consistent with units above, and implies newer units have the 49g+ stamp. Also, the '0' and '1' characters (in the 7th place of the sn) are part of the unit number.

Thanks for the correction. This does, of course, make sense, although HP would have had a problem if they had continued producing the 50g into 2016 and later

(12-01-2018 08:30 PM)rprosperi Wrote:  I believe the units with 5 digits for unit # included only numbers, whereas those with only 4 places included numbers and letters.

This is consistent with the serial numbers of my units.