§
#
#
#@#
12 Feb 2014 · 18 posts · 13 authors
I am currently very enamored of red LED displays on calculators. .... There's no magnifier bubble but I think a .15" display would be readable ...
These bubble displays have a peak forward current per segment of 5mA at a peak forward voltage of 2V. Thanks to a neat magnification technique used by the ...
Reprinted from the Spring 1997 issue of The International Calculator Collector. .... A clear plastic bubble lens was fabricated into the package to magnify the ...
Large LCD Display; Large Rubber Button; Clear female Voice; Square Root function key. This 8 Digit Jumbo Talking Calculator announces calculations in ...
