USA - 1981

Four functions,
Sqr Root, %

" TI's first solar-powered, four-function hand-held calculator. Handled percentages and square roots. Sleek and convenient, the TI-1766 had solar cells that eliminated the need for batteries and powered the calculator indoors and out. Eight-digit LCD; four-key memory. Weighed under 2.0 ounces. $19.95 SRP."
Content and photo provided by Texas Instruments,
and published with the permission of Texas Instruments Incorporated.

TI Calculator History