Erroneous HP-16C

[damaltor]

Yeah, i have seen that. As the 12C machines are "the cheapest" though, i might trial and error until i have one that fits - though i dislike sacrificing another old machine, so i guess i will wait until someone sells a broken or beaten up one. Those have their history, too, but still for me personally the 11C is of more value than the 12C. also, the 12C is as far as i know the most popular and most produced, least rare device, so it might be okay to sacrifice one.