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Kostas Kritsilas · (This post was last modified: 08-23-2023 07:43 AM by Kostas Kritsilas.)

(08-19-2023 08:56 AM)Alexanderpentagon Wrote:
(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

Alex, as I wrote previously, I HAD that HP-97 with the ribbon cables, as in no longer have anymore. So pictures are not possible.

From recollection, the printed circuit boards inside the machine were all HP original. There were soldered wires all over the motherboard, a stuck (as in foam tape/double sided tape) clamp used as a strain relief, and two ribbon cables coming out to DIP connectors. The DIP connectors were NOT marked HP. The ribbon cables exited the back of the case, in the small recess that joins the top to the bottom case halves. There were two square cut rectangular cut outs to allow the cables to pass through.