Hi, Eric;
What about differentiating between the continuous memory equivalents? I guess that only the Spices had this 'dual' series: HP33C against HP33E, and HP38C against HP38E. The only other case I recall is the HP25 against HP25C, but there was no additional letter to identify the first one because, I guess, the continuous version was introduced later. I'm not sure if this is true, but are there any other series from HP offering both a 'regular' and a 'continuous memory' for the same model? I saw the MoHPC front page and I saw no other series with an 'E' than the Spice's.
(added to the original post) But you may also be correct, because I checked for their introduction date and the three Spices with continuous memory (HP33C, 34C and 38C) were introduced in 1979, after the 'enhanced' ones (1978).
Cheers.
Luiz (Brazil)
OT - Mr. wise a..e is not aware of the fact that the HP31E has expensive prices because of other reasons than the technological ones; it was intended to be a low-budged model at that time. I had two of them and gave one as a gift to a dearest friend, exactly the one that filled the memory registers with some values other than zeroes, a good collecting unit; I also had three HP37E and used two of them as trading units. I still keep my own HP31E and an HP37E for researching purposes, only ;-)
Edited: 23 Apr 2005, 9:48 p.m. after one or more responses were posted