Where to get HP65 schematics? - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Where to get HP65 schematics? (/thread-1994.html) |
Where to get HP65 schematics? - Harald - 08-19-2014 01:30 PM I am interested in understanding the HP65 hardware a bit more. I assume display and keyboard are identical to the HP35, which is described by Jacques Laporte here. But I can't find anything on the card reader. I have already tried to contact Dave Colver for the schematics CD but unfortunately did not get a response. Any ideas are much appreciated. Regards, Harald RE: Where to get HP65 schematics? - SlideRule - 08-19-2014 02:03 PM Harald Try googling for the following: a. us-patent-4001569 b. us-patent-4009379 for a start - Happy Hunting. BEST! SlideRule RE: Where to get HP65 schematics? - Don Shepherd - 08-19-2014 05:52 PM (08-19-2014 01:30 PM)Harald Wrote: I am interested in understanding the HP65 hardware a bit more. I assume display and keyboard are identical to the HP35, which is described by Jacques Laporte here. Have you looked at HP Journal for May, 1974, volume 25 #9? That whole issue is devoted to the 65. It is on the Museum DVD or at hparchive.com. RE: Where to get HP65 schematics? - Didier Lachieze - 08-19-2014 06:37 PM (08-19-2014 05:52 PM)Don Shepherd Wrote: Have you looked at HP Journal for May, 1974, volume 25 #9? That whole issue is devoted to the 65. It is on the Museum DVD or at hparchive.com. It's also available on the HP web site : hp journal : online issues. |