|Re: How do you keep your calculators?|
Message #2 Posted by Valentin Albillo on 23 June 2006, 6:52 a.m.,
in response to message #1 by Antonio Maschio (Italy)
I'm not saying that what follows is the best way to do it, it's just how I do it:
- *all* batteries removed
- inside their own covers, leather cases, or whatever, but not their boxes
- each one individually stored in a teflon or similar plastic bag (to reduce whatever friction, i.e., wear, to a minimum)
- each bag is then thermally sealed, so that no gasses, liquids, or dust can enter it.
- the sealed bags are kept in a suitable place, i.e., inside some drawer, so that they're safe from light, moisture, etc.
- once a year or so, I remove them from their sealed bags, putt batteries back on, and test them for a little while, then to the bag again.
I also check pouch disintegration, as the original ones for the HP7-1B have the nasty habit of turning their insides into acrylic dust with time, which must be washed out. If the pouch develops or can
develop this problem, it's best to have the calculator out of it
or at least enclosed in a plastic bag of its own. Checking card readers is a must, too.
Anyway, I think most of this is overkill, actually. My HP-11C was in the open for more than 20 years of (careful) daily use, and it's in the same nearly mint good shape as most of my other models.
Best regards from V.