There are presumably 4 versions of the HP-45, similar to the HP-80. The first two versions have a stainless steel strip that runs horizontally just below the display and above the OFF/ON switch, instead of the silver painted strip used on later versions. The only difference between version 1 and version 2 is that the front label on version 1 only has "Hewlett Packard" on it whereas version 2 has "Hewlett Packard 45" Now, I know this is true for the HP-80, because I own both versions, however, I have never found a version 1 of the HP-45, just the version 2, which has a very early serial number 1301A06579, and makes me wonder if such a thing as an HP-45 version 1 even exists. The HP-80 came out before the HP-45, within a year of the HP-35, so it makes sense that there would be an HP-80 version 1 with the generic front label.
So, I ask the question of all you hardcore collectors, do any of you own an HP-45 version 1, or is its existence just fiction?
Michael
Edited: 9 Apr 2009, 8:11 p.m.