5 Mar
2013
5 Mar
'13
2:36 p.m.
I missed the HP42s the first time round because it
cost so much. A few
years ago I obtained a very nice one on ebay. I love it!
I am (as ever) in a minority of one amongst HP enthusiasts in that I
don't much like the 42S. It strikes me as a 41 with all the good bits
taken out. Good bits like plug-in modules, HPIL, synthetic programming, a
way to abck up your data, etc.
I asume you know that if you open up the 42S you can desolder the
existing 8K RAM chip, solder a 32K (62256-type) chip in place of it, oep
nthe soldered jumper next to that IC and solder the other jumper near it.
Then you have a machien with 32K RAM. The 17B which uses the same
hardware will accept a 32K RAM in that way but will only use 8K of it.
the 42S will use the lot.
I have not upgraded my 42S though. With no way to abck up the program I
type in, I don't see the point in having 32K
-tony