HP 82104A Card Reader Serial Numbers

[Sylvain Cote]

(06-10-2018 08:15 PM)Massimo Gnerucci Wrote:  

(06-10-2018 06:45 PM)Sylvain Cote Wrote:  CR-1E 2058S

Are you sure about this?

(06-10-2018 08:51 PM)AndiGer Wrote:  Yes, he is sure ...

I have re-checked the card reader and the serial number is really 2058S45227

(06-10-2018 07:22 PM)rprosperi Wrote:  

(06-10-2018 06:45 PM)Sylvain Cote Wrote:  

Code:

CR-1D  2101S45609

Code:

CR-1E  2052S48206
CR-1E  2058S45227
CR-1E  2133S46062

Interesting that in Singapore they switched to Rev E not later than last week of 1980, but then used some Rev D ROMs again in the first week of 1981. Could be start-up inventory issues?

Maybe ... its possible that they had started the production in Singapore, then received a bunch of chip from a HP USA warehouse that they included in a later production date.