Hi, my father give me when he died a HP-41CX and a lot of accessories that i slowly learn about on this site and other. But there is a module name "Double" and number "A531D" that i don't know anything about: It's a silver tape on the module and not a "engraved" white encryption. Can someone tell me the purpose of this ROM... or RAM... and how to acess it???
Thanks...
Michel Beaulieu,
younger physic teacher than my father
who normally work with TI-Graphic calculator... So excuse me if this module is well known!!! :-)