I am looking for 90's era PCMCIA battery-backed SRAM cards used in musical keyboards, HP48 graphical calculatosr, old typewriters, voting machines, CNC machinery, some networking equipment, and in my particular case, HP RF test equipment, to store settings and to back up the volatile ram containing calibration settings. A few pictures are provided. They are made by many companies (Epson, Roland, HP, Phillips, etc.) and the ram size is important: 32k, 64k, 128k, 256k. If you recognize these items and haven't thrown them out, I would love to take one (or all) off your hands, please and thank you.