Awesome review - I don’t think I appreciated my calculator as much as I should have when I studied electrical engineering in the early 90s! Super review. The solar power was cool back then.

tengo mi fx 61f desde el 1992 y funciona perfecto aún. gracias por el video!

Thank you for this new video!

One can program the fx-5800P or some other model to do automatic impedance calculations. Basically create default programs for capacitive reactance, inductive reactance, parallel and series combinations. Then use them to do complex combination calculations. On 5800P I can do the same calculations almost as fast as in the 61F.

Thank you for this thorough review! I'd love to get my hands on one of these but so far I just really like my fx-4500p(a)'s due to (among others) the "permanent" engineering mode (with k m n p etc). And missing functionality such as the parallell resistor key or specific formulas I just write my own programs for :) I pretty much use the machine daily on my electronics engineering job (but I don't miss the complex functions), can't believe I've found these machines sooner, thank you (and ledudu) for introducing them to me!

Nice work as usual

The fx-61f is a treasured calculator. Have you heard about the ElectriCalc Pro from Calculated Industries? I wonder how they compare.

Nice! When you think about it it is odd that there were not more engineering specialized calculators, would have thought replacing all those slide rules would have been one of the larger markets! Though I much preferred your HP based implementation, particularly if you extended it with shortcuts for the SI prefixes. Maybe this is the answer: engineers preferred to 'roll their own' using a programmable scientific machine?