Posts: 591
Threads: 16
Joined: Feb 2012
Hi.
I guess you'd like to take a look here and just a little bit below, under "HP-41C Versions", you'll see this image:
Guess it will help you with your conclusions.
Cheers.
Luiz (Brazil)
Edited: 23 Nov 2012, 9:37 a.m.
Posts: 883
Threads: 17
Joined: Feb 2006
There is also the issue of keyboard feel. The half nuts have a thicker rubber sheet between the key tops and domes. This results In less tactical feedback on a key press. This was done to extend the useful keyboard life because the thinner rubber of the full nuts will "punch though" sooner, resulting in a key top that sits lower and has poor tactile feel. They still work okay, they just don't have the normal feel and travel. Overall, IMO the full nut is superior in both display and keyboard.
FWIW, it takes *alot* of pounding to beat either 41 keyboard design into anything even remotely resembling a worn out state.