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submitted 5 months ago by [email protected] to c/[email protected]

14 comments fedilink hide all child comments

A gift from my Calculus teacher upon graduation.

Yes manual included. Sadly the 0 (zero) button no longer works, due to battery corrosion... ☹️

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[–] [email protected] 4 points 5 months ago (2 children)

Open that bad boy up and grab some vinegar and a qtip. It'll remove the corrosion!

[–] [email protected] 5 points 5 months ago (1 children)

Already been there and basically done that actually, but with rubbing alcohol and a pencil eraser.

If vinegar is used (yes I've done that before as well), then it needs to be followed by a baking soda/water solution to neutralize the acid.

I believe the remaining problem is a corroded via, which connects the layers of the board together.

It's only a 2 layer board, so I might get it fully fixed one of these days. Totally within my skill set, just not high on my priority list..

[–] [email protected] 7 points 5 months ago (1 children)

Humanity went centuries without 0s, you’ll probably be fine!

[–] [email protected] 3 points 5 months ago

LMFAO!

[–] [email protected] 1 points 5 months ago

I actually did two videos on my two rounds of trying to restore this thing...

More to come, maybe, someday...