HP 12C Turns 40 This Year

[DaveBr]

   

(10-31-2021 09:25 AM)vaklaff Wrote:  

(10-29-2021 02:15 PM)DaveBr Wrote:  Nice find! I have a NOS 12C in the box I haven't opened yet. If my wife's 12C (USA) ever peters out, it will be hers.

Is it safe to keep it that way? I mean, won't the cells leak at some point?

Good question! I personally have never, ever had a button cell battery leak (knock on wood). Since I don't intend on selling this 12C, I cut the packing tape sealing the flap end of the box and inspected the calculator. It was made in the USA in 1988, with the serial# 2808A545XX. It turned on with the original batteries (amazing) and the keys feel great. I removed the batteries and stuck them to a small length of tape. Back in the box it goes.

Quote:I suppose you and your wife will have to hang the package over the fireplace for your grandkids or great grandkids to see what a calculator is!

My grandkids are very familiar with my "nerd boxes" (their words, not mine). My 41CX and a 27S are on the end table beside my usual sitting place. My wife's 12C (USA SN# 2151AXX... is on a corner of the kitchen counter.
My 6 yr old grandson even understands how to do simple addition using RPN.
Dave