Classic HP Calculator Repair Experiences

[Kostas Kritsilas]

(09-28-2020 03:35 AM)GreyUser Wrote:  Just my opinion but...

If you intend to use it, repair it yourself, unless of course you have absolutely zero electronics ambition. There is documentation on the web and plenty of support here on the forum to get that done. Yes, the first time can be challenging but I guarantee you the experience will be enjoyable and interesting.

If your goal is to sell the units, do that as-is. Repair is by no means a sure thing and you’re not likely to get the additional investment back in the sale price, especially so for the HP80. One last bit of advise is don’t be fooled by eBay buy it now prices, they don’t reflect market value in any way.

I used to be an electronics technologist at one point. The issue now is not ambition or ability, but vision. My eyesight is such that I have severe astigmatism, and even with semi-rigid gas permeable contact lenses, cannot be completely corrected. So I would like to have somebody who can see properly, and preferably with some experience, repair my HP-65.

The HP-80 is on its way to me now. I was told it is non-functional, but I don't know if it is a motherboard issue, or a battery pack issue.

I intend to keep both calculators, they will go along side my HP-35, 45, 55 (non-fuctional), HP-67, 2 HP-41CXs, 2 HP-97s, HP-48GX, and HP-35S, as well as my 2 TI-59s (one stuck to a PC-100B Printer because I don't have the key), 2 Ti-58Cs, Ti-58, TI-60, and TI-66. There is no intent at this point to sell any of them.