Posts: 1
Threads: 1
Joined: Aug 2013
Hi,
I use the HP 12C at work and own a few of them.
I purchased one that starts with the serial number 21 which I understand means it was made in 1981.
Would you guys agree that this means it was made in 1981?
Also, what is the value of it?
Posts: 72
Threads: 2
Joined: Nov 2011
You are right about the serial number interpretation.
(see here)
For units produced between 1981 and 1989,
well preserved units can be had for less than $50 USD
and new old stock units (box, book, inserts, etc)
is frequently available for less than $100 USD.
edit: add serial number link
Edited: 6 Aug 2013, 10:29 a.m.