I have two cheap one dollar calculators. One of them stop working, and second is working perfectly.
My non working calculator came with solar panel. I took it out and installed it into a working calculator. Well. to be short it works expect it receive too much or too little current/voltage from panel?
Is there a way to remedy this? In non working calculator there is a zener diods, should I install this too? Anyway, would be appreciated.
Thanks