Somwehere at the house, I have an old HP 41-CV with a math cartridge if I remember correctly that I haven't used for ages. I'll have to look it up and see if it still works. I seem to remember it used "N" size batteries, I think 4 of them. Does anyone know if these batteries (cells) are still available? Regards, Jim Regards, Jim > -------- Original Message -------- > Subject: Re: [TECH] A Sad Day....... > From: "Olin Lathrop" > Date: Tue, November 09, 2010 12:46 pm > To: "Microcontroller discussion list - Public." >=20 >=20 > >> .....my HP-16C died. > > > > Call the Henry Ford Museum. They might want it for one of their > > displays!! >=20 > I have two HP 11C and both are still working. One has started to develop= a > creeping black area on the LCD, and one of the rubber feet fell off the > other one, but it's right here by my monitor and it gets used regularly. >=20 > You can still get a RPN calculator from HP. The model name is something > with a "S" at the end. I got one for home and it works fine, just differ= ent > enough you have to hunt around for where the buttons are when you switch > back and forth. It is also in the vertical format, not horizontal like t= he > 11C, 12C, and 16C. >=20 >=20 > ******************************************************************** > Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products > (978) 742-9014. Gold level PIC consultants since 2000. > --=20 > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .