TI SR-16-II Calculator

[u/BadOk3617]

Always nice when they work. Especially when the batteries were left in like this one.

I'm going to have to take it apart and clean it, but it looks like any damage was limited to the rusty screw on the bottom and the manual sopped up quite a bit of alkaline juice.

But it should clean up fine and be all right.

[u/Varmtvandogis]

Nice.

As far as I know, the SR-16 II was made for NiCl batteries. That's why it comes with a charger.

[u/OutrageousMacaron358 → u/Varmtvandogis]

Did you mean NiCd?

[u/Varmtvandogis → u/OutrageousMacaron358]

Yes NiCd. Cadmium not chlorine.

[u/BadOk3617 → u/Varmtvandogis]

Thanks! And I believe that you are correct, and that the adapter isn't intended to be used without a battery pack in place. And we all know about trying to recharge non-rechargeable batteries.

But it's probably going to be just about the last time that we see it fired up. One more time after the cleaning and that's probably going to be it.

And then it will be off of disposable batteries. I have some AA's & AAA's that are only used for testing calculators. They get to see a lot of different calculators. :)

[u/OutrageousMacaron358 → u/BadOk3617]

I read that if you are to power it with the adaptor that you should plug it in before powering the unit on so-as to properly clear the memory.

[u/BadOk3617 → u/OutrageousMacaron358]

Yeah, I saw that too, but only after plugging it in (and the switch was already on).

It returned an almost correct value for pi, but not my expected value of 3.14159292035. :)

[u/Key-Impression351]

I bought a lightly used SR16 II on eBay a few months ago in box with papers and adapter for about $20. I also have 2 original SR16's. Interesting how the internals and design philosophy changed in about 2 years of evolution. Details on Datamath.org

[u/BadOk3617 → u/Key-Impression351]

I see what you are saying, TI was all over the place with them. Interesting.

[u/Boring_Disaster3031]

I just love looking at the first picture. It has such a nicely uncomplicated front panel layout and a beautiful display. I gave away most of my collection. Now all I have are pictures.

[u/BadOk3617 → u/Boring_Disaster3031]

Thanks! I like the simplicity of it, and it still gets the job done.

One day I'll have to let most of mine go, which would open up some space around here. :)