Hi,
just found two old HP calculators in a box with old stuff from my father.
a HP-25 and a HP-41C, both with original leathercases.
the HP-41C looks like it would still work with batteries (as soon as i find out what batteries it takes)
It has 2 Memory Modules labled HP 82106A
The s/n is 2041A01654 (possible to guess to production date from that?)
basicly i would like to know how to fully test it to see if the device and the memory units are working.
and of course whats the value of it if it's still working?