HP-28S battery compartment rubber "seal"

[Raymond Del Tondo]

(01-18-2014 11:09 PM)Siegfried Wrote:  I picked up a back-door version in the meantime but I suppose there is no back-door HP-28?

Unfortunately not, but maybe one could create a Frankencalc using a "backdoor" 19BII case, and implant 28S electronics inside.

(OT: Hope you like the printer:-)