i have two calculators that i purchased in the 70s to help with my science, math, and engineering classes. they are the HP 67 and HP 91. I have the manuals, cases, AC adapters, programmable cards for the HP 67. I´m 60 years old now and don´t have a need for them. Please email where I can sell these two.
Thank you.
riskmgr
8/3/2009 10:19:56 AM - US
| reply
A reminder of how old I am. While an HP 35 was ten times the slide rule price and seen as expensive, it paid for it self many times over.
Ken
1/29/2009 7:29:48 AM - US
| reply
i have 2 units hp19b. both still in working condition but the battery cover does not work anymore. this is the weakest part of that calculator. is there a repair for this. thanks
Edgar Diaz
10/1/2007 10:42:02 PM - PH
| reply
The new 5th edition of "A Guide to HP Handheld Calculators and Computers" will be available in September 2007 at the San Diego (California) show of the HHC. This is Wlodek Mier-Jedrzejowicz´s amazing book on all the HP handheld devices made. To get your copy, you can visit http: www.hpcalculatorguide.com for information when available.
HP Guy
9/23/2007 5:18:41 PM - US
| reply