Paul B. Webster VK2BZC wrote:
> I wonder how many LCD calculators last even ten
My SR-51 (1972, LED), TI-59 (1976, LED), & TI-74 (1986, LCD),
all still work. TI-74 has been in daily use since I bought it.
I've worn the logos off some of the keys, otherwise ok.
My Dad's been using the SR-51 for about 15 years.
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