msgtsmithret
Well-known member
Vintage HP25C Scientific Calcluator $15:
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Wow! That brings back some memories. My Dad was an electrical engineer for HP in those days and he worked on that project (and many others). I got to see prototypes of this calculator and we even had a "terminal" (like a desktop computer) that we had to connect to the mainframe computer by putting the handset of our phone in a cradle modem. No one had a home PC in those days.
Wow! That brings back some memories. My Dad was an electrical engineer for HP in those days and he worked on that project (and many others). I got to see prototypes of this calculator and we even had a "terminal" (like a desktop computer) that we had to connect to the mainframe computer by putting the handset of our phone in a cradle modem. No one had a home PC in those days.






which was cornwell and lots of snap on, SK and underline Craftsman