Spice Low Power

[jjohnson873]

(10-04-2019 11:26 AM)Maximilian Hohmann Wrote:  Hello!

And regarding the original topic: Great as usual! Unfortunately my non-working "spices" have also some mechanical damage to the casing (due to the cheap brittle plastic that HP used for this series) and/or lots of corrosion damage due to barttery leakage which even includes the displays. So no suitable donor for an upgrade unfortunately.

Regards
Max

I echo this problem with battery corrosion that typically eats the copper in the flex cable used for charging as well as the battery terminals. I repaired an HP-34C last year and used some spring metal for a new battery contact and a three wire ribbon cable to reconnect the charging pc board back to the calculator electronics. Only after I was finished did I see the hairline crack in the case. While the very fine crack didn't affect the operation of the HP-34C, it was visible if you looked very hard in a bright light. ~ Jim J. ~