HP-41 Cold Shock
#1

Could the HP-41 get problems during cold weather? Maybe that was a reason why one of my CXs died the other day. Another one apparently died today but I managed to revive it with only minor strange behaviour (a few previously unassigned keys were suddenly assigned some XROM functions in the 07 series).

Is it a sudden spell of cold shock? Is this possible?

Background info: I am living in Norway. It is early March. It's damn cold outside. A fireplace and a hot chocolate is the way to go.

#2

My 41cx manual says the minimum operation and storage temperature is 0 deg C. Then it goes on to say that if the batteries are removed, or if clock accuracy is not a concern, then the storage temperature can go down to -20 deg C. I can't think of anything in there that should experience any damage until you get down at least to -20, and then maybe you could damage the LCD. I did test a wide-temperature-range LCD here for my work a few years ago, and although they said anything below -40 could damage it (from freezing the liquid), I took it down to -55, even while operating. Although it was not readable down there, it was fine when brought back up to normal temperature.



Possibly Related Threads…
Thread Author Replies Views Last Post
  HP-41(CL): The easiest way to transfer FOCAL programs from a Linux PC to the HP-41 Geir Isene 13 5,555 12-05-2013, 02:40 AM
Last Post: Hans Brueggemann
  Equivalent generic part # for HP cold-cathode displays... Nick de Smith 0 797 09-22-2011, 03:29 PM
Last Post: Nick de Smith
  Source for 3M 8242-8 Cold Shrink David Ramsey 3 1,486 08-14-2011, 03:19 AM
Last Post: Tony Duell
  Which cold shrink kit for 9810 printer platen? David Ramsey 1 949 07-19-2011, 04:06 AM
Last Post: Tony Duell
  [OT] TAS selling fee shock Michael de Estrada 6 1,955 03-06-2011, 11:40 PM
Last Post: Wanderley Navarro
  Anyone want hp 41 to 41 infra-red data transfer? don wallace 38 8,323 09-21-2005, 04:17 PM
Last Post: don wallace

Forum Jump: