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Casio fx-61F: Scientific Electric Formula 27
04-07-2016, 10:49 AM
Post: #4
RE: Casio fx-61F: Scientific Electric Formula 27
Well, I am pleased to inform that I got the machine!

I had to pay an extravagant amount of money to convince this "old dog" engineer (well, I'm getting there as well, 7 more working years and I will be retired if this Portuguese social welfare system doesn't fail on me before I do) Smile

First the bad things:
- It looks cheap in your hands because it is very light, but then it is a small machine that should go nicely in your shirt pocket.
- It uses rubber keys that I dislike on CASIO machines, as they could do much better by using plastic keys as found on other CASIO models from the same era.

Now the good news:
- It works flawlessly.
- As usual on CASIO machines, the keys never fail to register, no matter how fast you type.
- To test the hybrid power supply on solar panel only, I removed the tiny small single battery cell (it brought a 1.5V AG7 alkaline inside). I can tell you this machine solar panel is super-sensitive, as it can wake up the calculator even in the dark shadow inside home. I never saw this performance before in any solar calculator.

More to come when I have the time to do the usual dismantling photo magazine.

Jose Mesquita member

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RE: Casio fx-61F: Scientific Electric Formula 27 - jebem - 04-07-2016 10:49 AM

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