Retro Product Love: CASIO fx-82SX

Going on strong

I’ve had this calculator for maybe 15 years. There’s just something I admire about efficient design - especially power efficient design.

The power consumption is listed on the back of the calculator as 0.0004W. This calculator has followed me through high school and university and every assignment, exam and study session along the way. It has not lead an idle life.

I snapped these pics because it needed a little internal tightening (I thought it could be low on battery, but WOW… no). I was very surprised to find that under load, the original batteries were still reading above 3V.

To CASIO, I bow deeply and respectfully.