|I have gummy wheel! (was: My First Pre-1980 HP has arrived!)|
Message #7 Posted by Les Wright on 8 Dec 2006, 5:29 a.m.,
in response to message #6 by Les Wright
I know this is probably not advised, but the curiosity was killing me:
I cut a length of thin smooth cardboard about the width of a mag. card. Passed it thru the card reader. It doesn't feed thru much of course, and the calc gives an error. But, to my chagrin, when I get it out there is a sheen on it of telltale clear sticky streaks. And, yes, I know what that means.
Thought I would take a look as much as I could. The calc is held together with six screws but I could only get out four. The other two are frozen in there, and I gave up very quickly because I don't want to do any damage (stripped screw heads, cracked plastic, etc.)
The 97 is one of FixThatCalc's pricier repairs, but I was so delighted with the renaissance of my 41CV (really, Randy rescued it from the recycling bin) that in the next little while this TopCat gets an appointment with our great friend in PA. Some folks of told me of the replace o-rings and that you can "do it yerself", but that would be false economy for me. Yes, I paid more than average for this thing to begin with, but if I want to get a lifetime of use out of it I should get it fixed by the expert.
The good news is that I was able to properly reposition to A/C plug prongs. The two little metal things that poke out are supposed to nestle in a little slot and are held in place by the bottom have of the case so they don't get pushed into the calc when the female connecter of the adapter is pressed on them. I was able to get the screws out on that side of the calc to gain quick access and quickly resolve the problem. Now, the A/C adapter attaches snugly and doesn't molest the prongs.
It is a joyous little machine nonetheless though. I have already entered my first HP97 program--a port of a TI57 routine for Simpson's Rule. Easy to port on the fly, since the "language" of the TI57 and early HP keystroke programmables are very similar. Just wish I could save it to a card ;)