RARE VINTAGE HP-48G (with 128K RAM) Graphing Calculator (working)

You are bidding on a vintage HP-48G graphing scientific calculator that is inworking condition and in good physical condition. The calculator has 128K RAM memory. You can easily find the manuals for this calculator online. To find the manuals, Google-search "HP Calculator Literature". The results will display links that will take you to a manuals' web site. It has a large collection of free manuals and books for vintage HP calculator products. I am not affiliated with that web site.

The auction includes:

·        The HP-48G calculator with 128K RAM (self test and MEM command indicate 128K RAM). Takes three AAA batteries (not included). The calculator passes the self test. I noticed that the self test works most of the time after you first issue a MEM command, and then you press the three keys to initiate the self test. When the calculator wakes up it displays a warning message (Invalid Data Card).  Not sure what the warning is about.

Here is the check list for the HP-48GX calculator:

Winning bidders, in the US, will pay for USPS Small Flat-Rate Box priority. Sorry, no international sales. You have seven days from receiving the calculator item to return it. I will refund you only what you paid for the calculator unless I grossly misrepresented the calculator. By bidding you agree to these terms.

All bidders with feedback of 2 or less must contact me BEFORE bidding. I reserve the right to cancel your bid if you do not contact me.

Payment VIA PAYPAL. The winning bidder MUST SEND PAYMENT WITHIN 3 DAYS from the end of bidding. Please bid only if you are serious about honoring your bid.