HP-97S 'Proto' ?

[Alexanderpentagon]

(08-19-2023 07:27 AM)Kostas Kritsilas Wrote:  I had one of these "non S" HP 97S a long time ago. At the time, I did some research, and found that there were standard HP-97 units that were modified by a third party to add the external pods. They were some form of a non-standard pod that communicated using some handshake and BCD encoding. That was as far as I ever got. Since this was a while ago, I can't recall the name of the company that did this, altough later on, HP brought out the HP-97S and the company stopped making there own version of the HP-97S. Evidently, there was enough demand that HP felt that they needed a HP-97S.

Ok , but , from the images I can see that my pod is an original HP Pod and the printed circuit boards are original HP with early/pre-production chips and design ( as I can see on other photos in the web)... I appreciate if You can post any link or photos related
Thank You
KR
Alex