We honestly didn’t really do much in part 1 beyond cleaning and getting the thing powered; fixed some keys and the source of the constant power consumption in part 2, and this is part 3, which is just a quickie really.
The calculator works wonderfully, it’s just annoying to have to use it with wall power. In comes a 9V battery! And a 9V snap connector to DC plug adapter that I found at a local shop for just 100 yen!
That’s honestly good enough for me. Maybe I’ll solder on a proper 3.5 mm connector instead of using the DC to 3.5 mm adapter at some point.
That’s it for today.